2025-03-22 12:59:21 UPDATED: (M5.2) Andreanof Islands, Aleutian Islands, Alaska 51.2 -176.3 (70fa9)

M5.2 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.2
Date-Time	Universal Time (UTC): 22 Mar 2025 12:59:21 Time near the Epicenter (1): 22 Mar 2025 02:59:21 Time in your area (1): 22 Mar 2025 18:29:21
Location	51.214N 176.277W
Depth	35 km
Distances	77.5 km (48.1 mi) SSE of Adak, Alaska 1548.3 km (959.9 mi) S of Anadyr, Russia 1602.9 km (993.8 mi) ESE of Klyuchi, Russia 1721.5 km (1067.3 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1737.2 km (1077.1 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 5.1 km; Vertical 1.9 km
Parameters	Nph = 100; Dmin = 72.7 km; Rmss = 0.78 seconds; Gp = 79° Version =
Event ID	us 7000plv1 ***This event supersedes event AK0253q60zwn.

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2025-03-22 12:51:43 (M5.3) Vanuatu -14.1 167.0 (70fa9)

M5.3 Earthquake - Vanuatu

Preliminary Report

Magnitude	5.3
Date-Time	Universal Time (UTC): 22 Mar 2025 12:51:44 Time near the Epicenter (1): 22 Mar 2025 23:51:44 Time in your area (1): 22 Mar 2025 18:21:44
Location	14.088S 167.003E
Depth	124 km
Distances	63.8 km (39.6 mi) WSW of Sola, Vanuatu 159.3 km (98.8 mi) N of Luganville, Vanuatu 427.4 km (265.0 mi) NNW of Port-Vila, Vanuatu 756.3 km (468.9 mi) N of Wé, New Caledonia 892.8 km (553.5 mi) N of Païta, New Caledonia
Location Uncertainty	Horizontal: 9.5 km; Vertical 6.3 km
Parameters	Nph = 75; Dmin = 151.8 km; Rmss = 0.90 seconds; Gp = 54° Version =
Event ID	us 7000pluz

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2025-03-22 09:49:25 UPDATED: (M5.6) Andreanof Islands, Aleutian Islands, Alaska 51.3 -176.2 (70fa9)

M5.6 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.6
Date-Time	Universal Time (UTC): 22 Mar 2025 09:49:25 Time near the Epicenter (1): 21 Mar 2025 23:49:25 Time in your area (1): 22 Mar 2025 15:19:25
Location	51.259N 176.200W
Depth	45 km
Distances	74.7 km (46.3 mi) SSE of Adak, Alaska 1544.4 km (957.5 mi) SSE of Anadyr, Russia 1605.1 km (995.2 mi) ESE of Klyuchi, Russia 1725.2 km (1069.6 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1740.8 km (1079.3 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 5.7 km; Vertical 4.7 km
Parameters	Nph = 102; Dmin = 93.4 km; Rmss = 0.98 seconds; Gp = 135° Version =
Event ID	us 7000plu1

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2025-03-22 04:24:24 (M5.0) South Sandwich Islands region -58.8 -25.4 (70fa9)

M5.0 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 22 Mar 2025 04:24:24 Time near the Epicenter (1): 22 Mar 2025 02:24:24 Time in your area (1): 22 Mar 2025 09:54:24
Location	58.829S 25.372W
Depth	37 km
Distances	2564.6 km (1590.1 mi) E of Tolhuin, Argentina 2598.0 km (1610.8 mi) SSW of Edinburgh of the Seven Seas, Saint Helena 2613.2 km (1620.2 mi) E of Ushuaia, Argentina 2632.7 km (1632.3 mi) E of Río Grande, Argentina 2845.7 km (1764.3 mi) E of Río Gallegos, Argentina
Location Uncertainty	Horizontal: 15.1 km; Vertical 9.5 km
Parameters	Nph = 48; Dmin = 1757.2 km; Rmss = 0.80 seconds; Gp = 88° Version =
Event ID	us 7000plsg

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2025-03-21 19:28:18 (M5.0) Solomon Islands -8.7 159.4 (70fa9)

M5.0 Earthquake - Solomon Islands

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 21 Mar 2025 19:28:19 Time near the Epicenter (1): 22 Mar 2025 06:28:19 Time in your area (1): 22 Mar 2025 00:58:19
Location	8.688S 159.450E
Depth	10 km
Distances	62.1 km (38.5 mi) SSW of Buala, Solomon Islands 99.0 km (61.4 mi) NNW of Honiara, Solomon Islands 115.2 km (71.4 mi) NNW of Malango, Solomon Islands 507.6 km (314.7 mi) ESE of Arawa, Papua New Guinea 928.2 km (575.5 mi) ESE of Kokopo, Papua New Guinea
Location Uncertainty	Horizontal: 9.9 km; Vertical 1.9 km
Parameters	Nph = 47; Dmin = 99.3 km; Rmss = 0.70 seconds; Gp = 102° Version =
Event ID	us 7000plq1

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2025-03-21 15:03:21 UPDATED: (M5.0) Andreanof Islands, Aleutian Islands, Alaska 51.0 -176.0 (70fa9)

M5.0 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 21 Mar 2025 15:03:21 Time near the Epicenter (1): 21 Mar 2025 05:03:21 Time in your area (1): 21 Mar 2025 20:33:21
Location	51.036N 175.957W
Depth	11 km
Distances	104.4 km (64.7 mi) SSE of Adak, Alaska 1572.0 km (974.7 mi) SSE of Anadyr, Russia 1632.2 km (1011.9 mi) ESE of Klyuchi, Russia 1748.7 km (1084.2 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1764.4 km (1093.9 mi) ESE of Vilyuchinsk, Russia
Location Uncertainty	Horizontal: 4.3 km; Vertical 5.2 km
Parameters	Nph = 55; Dmin = 97.1 km; Rmss = 0.77 seconds; Gp = 182° Version =
Event ID	us 7000pllz ***This event supersedes event AK0253ojxy8q.

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2025-03-21 14:58:26 UPDATED: (M5.7) Andreanof Islands, Aleutian Islands, Alaska 51.1 -176.0 (70fa9)

M5.7 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.7
Date-Time	Universal Time (UTC): 21 Mar 2025 14:58:27 Time near the Epicenter (1): 21 Mar 2025 04:58:27 Time in your area (1): 21 Mar 2025 20:28:27
Location	51.121N 176.024W
Depth	18 km
Distances	93.9 km (58.2 mi) SSE of Adak, Alaska 1561.9 km (968.4 mi) SSE of Anadyr, Russia 1623.4 km (1006.5 mi) ESE of Klyuchi, Russia 1741.4 km (1079.7 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1757.2 km (1089.4 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 5.0 km; Vertical 4.5 km
Parameters	Nph = 105; Dmin = 86.7 km; Rmss = 0.77 seconds; Gp = 70° Version =
Event ID	us 7000pllx ***This event supersedes event AK0253ojobmg.

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2025-03-21 14:50:51 UPDATED: (M6.2) south of Panama 7.0 -82.4 (70fa9)

M6.2 Earthquake - south of Panama

Preliminary Report

Magnitude	6.2
Date-Time	Universal Time (UTC): 21 Mar 2025 14:50:51 Time near the Epicenter (1): 21 Mar 2025 10:50:51 Time in your area (1): 21 Mar 2025 20:20:51
Location	7.036N 82.372W
Depth	10 km
Distances	123.2 km (76.4 mi) SSE of Burica, Panama 147.6 km (91.5 mi) SSE of Puerto Armuelles, Panama 148.4 km (92.0 mi) S of Pedregal, Panama 154.0 km (95.5 mi) S of David, Panama 154.0 km (95.5 mi) S of Las Lomas, Panama
Location Uncertainty	Horizontal: 2.2 km; Vertical 1.9 km
Parameters	Nph = 64; Dmin = 264.1 km; Rmss = 1.00 seconds; Gp = 144° Version =
Event ID	us 7000pllt

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2025-03-21 14:58:27 (M5.3) Andreanof Islands, Aleutian Islands, Alaska 51.1 -176.0 (70fa9)

M5.3 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.3
Date-Time	Universal Time (UTC): 21 Mar 2025 14:58:28 Time near the Epicenter (1): 21 Mar 2025 04:58:28 Time in your area (1): 21 Mar 2025 20:28:28
Location	51.098N 176.031W
Depth	29 km
Distances	95.9 km (59.5 mi) SSE of Adak, Alaska 1564.2 km (969.8 mi) SSE of Anadyr, Russia 1624.2 km (1007.0 mi) ESE of Klyuchi, Russia 1741.6 km (1079.8 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1757.4 km (1089.6 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 0.0 km; Vertical 1.8 km
Parameters	Nph = 48; Dmin = 0.0 km; Rmss = 0.48 seconds; Gp = 0° Version = 1
Event ID	ak 0253ojobmg

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Alaska Earthquake Center
Geophysical Institute, University of Alaska Fairbanks

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2025-03-21 14:53:42 UPDATED: (M6.2) Andreanof Islands, Aleutian Islands, Alaska 51.2 -176.1 (70fa9)

M6.2 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	6.2
Date-Time	Universal Time (UTC): 21 Mar 2025 14:53:43 Time near the Epicenter (1): 21 Mar 2025 04:53:43 Time in your area (1): 21 Mar 2025 20:23:43
Location	51.178N 176.147W
Depth	25 km
Distances	84.5 km (52.4 mi) SSE of Adak, Alaska 1554.0 km (963.5 mi) SSE of Anadyr, Russia 1612.8 km (999.9 mi) ESE of Klyuchi, Russia 1731.4 km (1073.4 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1747.1 km (1083.2 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 4.4 km; Vertical 6.1 km
Parameters	Nph = 81; Dmin = 78.3 km; Rmss = 0.93 seconds; Gp = 55° Version =
Event ID	us 7000pllu

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2025-03-21 14:53:43 UPDATED: (M5.6) Andreanof Islands, Aleutian Islands, Alaska 51.2 -176.1 (70fa9)

M5.6 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.6
Date-Time	Universal Time (UTC): 21 Mar 2025 14:53:43 Time near the Epicenter (1): 21 Mar 2025 04:53:43 Time in your area (1): 21 Mar 2025 20:23:43
Location	51.181N 176.095W
Depth	28 km
Distances	85.7 km (53.1 mi) SSE of Adak, Alaska 1554.3 km (963.7 mi) SSE of Anadyr, Russia 1615.7 km (1001.7 mi) ESE of Klyuchi, Russia 1734.7 km (1075.5 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1750.4 km (1085.2 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 0.0 km; Vertical 1.6 km
Parameters	Nph = 50; Dmin = 0.0 km; Rmss = 0.61 seconds; Gp = 0° Version = 1
Event ID	ak 0253ojnad2

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Alaska Earthquake Center
Geophysical Institute, University of Alaska Fairbanks

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2025-03-21 09:33:46 (M5.1) central Mongolia 43.4 104.0 (70fa9)

M5.1 Earthquake - central Mongolia

Preliminary Report

Magnitude	5.1
Date-Time	Universal Time (UTC): 21 Mar 2025 09:33:46 Time near the Epicenter (1): 21 Mar 2025 17:33:46 Time in your area (1): 21 Mar 2025 15:03:46
Location	43.391N 104.036E
Depth	10 km
Distances	37.2 km (23.1 mi) WSW of Dalandzadgad, Mongolia 206.0 km (127.7 mi) SE of Hovd, Mongolia 290.6 km (180.2 mi) ENE of Dalain Hob, China 317.7 km (197.0 mi) SSW of Mandalgovi, Mongolia 334.4 km (207.3 mi) SSE of Arvayheer, Mongolia
Location Uncertainty	Horizontal: 8.7 km; Vertical 1.9 km
Parameters	Nph = 56; Dmin = 527.2 km; Rmss = 0.87 seconds; Gp = 61° Version =
Event ID	us 7000pljf

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2025-03-20 21:00:09 (M5.5) Mid-Indian Ridge -16.5 66.6 (70fa9)

M5.5 Earthquake - Mid-Indian Ridge

Preliminary Report

Magnitude	5.5
Date-Time	Universal Time (UTC): 20 Mar 2025 21:00:09 Time near the Epicenter (1): 21 Mar 2025 01:00:09 Time in your area (1): 21 Mar 2025 02:30:09
Location	16.456S 66.598E
Depth	10 km
Distances	490.8 km (304.3 mi) NE of Port Mathurin, Mauritius 1025.0 km (635.5 mi) ENE of Rivière du Rempart, Mauritius 1025.2 km (635.6 mi) ENE of Bel Air Rivière Sèche, Mauritius 1025.7 km (635.9 mi) ENE of Goodlands, Mauritius 1025.7 km (635.9 mi) ENE of Centre de Flacq, Mauritius
Location Uncertainty	Horizontal: 10.1 km; Vertical 1.9 km
Parameters	Nph = 77; Dmin = 499.6 km; Rmss = 0.75 seconds; Gp = 41° Version =
Event ID	us 7000plf7

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2025-03-20 19:36:04 (M5.2) southeast of the Loyalty Islands -22.9 172.4 (70fa9)

M5.2 Earthquake - southeast of the Loyalty Islands

Preliminary Report

Magnitude	5.2
Date-Time	Universal Time (UTC): 20 Mar 2025 19:36:04 Time near the Epicenter (1): 21 Mar 2025 06:36:04 Time in your area (1): 21 Mar 2025 01:06:04
Location	22.947S 172.379E
Depth	10 km
Distances	488.9 km (303.1 mi) ESE of Tadine, New Caledonia 495.4 km (307.2 mi) SE of Isangel, Vanuatu 574.1 km (356.0 mi) ESE of Wé, New Caledonia 602.4 km (373.5 mi) E of Mont-Dore, New Caledonia 614.2 km (380.8 mi) E of Nouméa, New Caledonia
Location Uncertainty	Horizontal: 8.1 km; Vertical 1.9 km
Parameters	Nph = 36; Dmin = 507.5 km; Rmss = 1.29 seconds; Gp = 134° Version =
Event ID	us 7000pled

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2025-03-20 12:04:21 (M5.3) South Sandwich Islands region -56.2 -27.3 (70fa9)

M5.3 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.3
Date-Time	Universal Time (UTC): 20 Mar 2025 12:04:22 Time near the Epicenter (1): 20 Mar 2025 10:04:22 Time in your area (1): 20 Mar 2025 17:34:22
Location	56.243S 27.293W
Depth	111 km
Distances	2408.5 km (1493.2 mi) SW of Edinburgh of the Seven Seas, Saint Helena 2557.1 km (1585.4 mi) ENE of Ushuaia, Argentina 2562.2 km (1588.6 mi) E of Río Grande, Argentina 2756.4 km (1709.0 mi) E of Río Gallegos, Argentina 2771.3 km (1718.2 mi) E of Puerto Deseado, Argentina
Location Uncertainty	Horizontal: 10.2 km; Vertical 5.2 km
Parameters	Nph = 72; Dmin = 624.1 km; Rmss = 1.14 seconds; Gp = 47° Version =
Event ID	us 6000q001

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2025-03-20 10:21:02 UPDATED: (M5.0) Andreanof Islands, Aleutian Islands, Alaska 51.1 -176.2 (70fa9)

M5.0 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 20 Mar 2025 10:21:02 Time near the Epicenter (1): 20 Mar 2025 00:21:02 Time in your area (1): 20 Mar 2025 15:51:02
Location	51.124N 176.170W
Depth	13 km
Distances	89.5 km (55.5 mi) SSE of Adak, Alaska 1559.5 km (966.9 mi) S of Anadyr, Russia 1614.4 km (1000.9 mi) ESE of Klyuchi, Russia 1731.5 km (1073.6 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1747.3 km (1083.3 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 5.1 km; Vertical 4.3 km
Parameters	Nph = 88; Dmin = 83.8 km; Rmss = 0.72 seconds; Gp = 193° Version =
Event ID	us 6000pzzb ***This event supersedes event AK0253mtj9bl.

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2025-03-20 08:15:17 (M5.0) off the coast of Central America 12.9 -88.9 (70fa9)

M5.0 Earthquake - off the coast of Central America

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 20 Mar 2025 08:15:17 Time near the Epicenter (1): 20 Mar 2025 03:15:17 Time in your area (1): 20 Mar 2025 13:45:17
Location	12.932N 88.854W
Depth	55 km
Distances	51.0 km (31.6 mi) SW of Puerto El Triunfo, El Salvador 62.9 km (39.0 mi) S of Zacatecoluca, El Salvador 63.7 km (39.5 mi) SW of Usulután, El Salvador 71.8 km (44.5 mi) SSW of Berlín, El Salvador 74.0 km (45.9 mi) SW of San Rafael Oriente, El Salvador
Location Uncertainty	Horizontal: 4.8 km; Vertical 7.3 km
Parameters	Nph = 59; Dmin = 82.6 km; Rmss = 0.96 seconds; Gp = 135° Version =
Event ID	us 6000pzy8

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2025-03-20 06:30:27 (M5.5) South Sandwich Islands region -60.4 -27.2 (70fa9)

M5.5 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.5
Date-Time	Universal Time (UTC): 20 Mar 2025 06:30:27 Time near the Epicenter (1): 20 Mar 2025 04:30:27 Time in your area (1): 20 Mar 2025 12:00:27
Location	60.413S 27.221W
Depth	100 km
Distances	2445.4 km (1516.1 mi) E of Tolhuin, Argentina 2489.6 km (1543.5 mi) E of Ushuaia, Argentina 2517.0 km (1560.5 mi) E of Río Grande, Argentina 2732.7 km (1694.3 mi) E of Punta Arenas, Chile 2739.5 km (1698.5 mi) E of Río Gallegos, Argentina
Location Uncertainty	Horizontal: 5.3 km; Vertical 7.1 km
Parameters	Nph = 87; Dmin = 881.0 km; Rmss = 0.49 seconds; Gp = 49° Version =
Event ID	us 6000pzxi

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2025-03-20 06:07:10 (M5.2) Andreanof Islands, Aleutian Islands, Alaska 51.3 -176.2 (70fa9)

M5.2 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.2
Date-Time	Universal Time (UTC): 20 Mar 2025 06:07:11 Time near the Epicenter (1): 19 Mar 2025 20:07:11 Time in your area (1): 20 Mar 2025 11:37:11
Location	51.303N 176.206W
Depth	35 km
Distances	70.2 km (43.5 mi) SSE of Adak, Alaska 1539.6 km (954.5 mi) SSE of Anadyr, Russia 1602.4 km (993.5 mi) ESE of Klyuchi, Russia 1723.4 km (1068.5 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1739.0 km (1078.2 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 8.1 km; Vertical 1.9 km
Parameters	Nph = 92; Dmin = 88.7 km; Rmss = 0.71 seconds; Gp = 145° Version =
Event ID	us 6000pzxa

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2025-03-20 05:15:24 (M5.0) Fiji region -17.8 -178.7 (70fa9)

M5.0 Earthquake - Fiji region

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 20 Mar 2025 05:15:24 Time near the Epicenter (1): 20 Mar 2025 18:15:24 Time in your area (1): 20 Mar 2025 10:45:24
Location	17.759S 178.742W
Depth	559 km
Distances	208.5 km (129.3 mi) E of Levuka, Fiji 249.3 km (154.6 mi) SE of Labasa, Fiji 292.8 km (181.6 mi) E of Nasinu, Fiji 303.0 km (187.8 mi) E of Suva, Fiji 381.1 km (236.3 mi) E of Ba, Fiji
Location Uncertainty	Horizontal: 13.8 km; Vertical 9.2 km
Parameters	Nph = 64; Dmin = 245.8 km; Rmss = 0.65 seconds; Gp = 93° Version =
Event ID	us 6000pzwy

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2025-03-20 05:13:07 UPDATED: (M5.4) Andreanof Islands, Aleutian Islands, Alaska 51.3 -176.2 (70fa9)

M5.4 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.4
Date-Time	Universal Time (UTC): 20 Mar 2025 05:13:08 Time near the Epicenter (1): 19 Mar 2025 19:13:08 Time in your area (1): 20 Mar 2025 10:43:08
Location	51.295N 176.227W
Depth	35 km
Distances	70.3 km (43.6 mi) SSE of Adak, Alaska 1540.0 km (954.8 mi) SSE of Anadyr, Russia 1601.4 km (992.9 mi) ESE of Klyuchi, Russia 1722.2 km (1067.8 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1737.8 km (1077.5 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 8.7 km; Vertical 2.0 km
Parameters	Nph = 63; Dmin = 89.2 km; Rmss = 0.53 seconds; Gp = 173° Version =
Event ID	us 6000pzwx

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2025-03-20 04:28:54 UPDATED: (M5.6) Andreanof Islands, Aleutian Islands, Alaska 51.1 -176.1 (70fa9)

M5.6 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.6
Date-Time	Universal Time (UTC): 20 Mar 2025 04:28:54 Time near the Epicenter (1): 19 Mar 2025 18:28:54 Time in your area (1): 20 Mar 2025 09:58:54
Location	51.052N 176.060W
Depth	35 km
Distances	99.8 km (61.9 mi) SSE of Adak, Alaska 1568.9 km (972.7 mi) SSE of Anadyr, Russia 1625.1 km (1007.5 mi) ESE of Klyuchi, Russia 1741.3 km (1079.6 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1757.0 km (1089.4 mi) ESE of Vilyuchinsk, Russia
Location Uncertainty	Horizontal: 5.6 km; Vertical 1.9 km
Parameters	Nph = 100; Dmin = 116.1 km; Rmss = 1.11 seconds; Gp = 149° Version =
Event ID	us 6000pzwb

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2025-03-20 03:56:15 (M5.2) Gulf of Aden 12.8 48.7 (70fa9)

M5.2 Earthquake - Gulf of Aden

Preliminary Report

Magnitude	5.2
Date-Time	Universal Time (UTC): 20 Mar 2025 03:56:16 Time near the Epicenter (1): 20 Mar 2025 06:56:16 Time in your area (1): 20 Mar 2025 09:26:16
Location	12.817N 48.731E
Depth	10 km
Distances	176.5 km (109.4 mi) NNW of Bosaso, Somalia 193.8 km (120.2 mi) NW of Qandala, Somalia 195.6 km (121.3 mi) SSW of Mukalla, Yemen 273.8 km (169.8 mi) WNW of Bereeda, Somalia 280.1 km (173.7 mi) SE of Ataq, Yemen
Location Uncertainty	Horizontal: 9.7 km; Vertical 1.9 km
Parameters	Nph = 76; Dmin = 507.5 km; Rmss = 0.93 seconds; Gp = 69° Version =
Event ID	us 6000pzw2

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2025-03-19 11:46:21 (M5.0) South Sandwich Islands region -60.5 -26.8 (70fa9)

M5.0 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 19 Mar 2025 11:46:22 Time near the Epicenter (1): 19 Mar 2025 09:46:22 Time in your area (1): 19 Mar 2025 17:16:22
Location	60.470S 26.752W
Depth	10 km
Distances	2470.9 km (1531.9 mi) E of Tolhuin, Argentina 2514.8 km (1559.2 mi) E of Ushuaia, Argentina 2542.6 km (1576.4 mi) E of Río Grande, Argentina 2758.1 km (1710.0 mi) E of Punta Arenas, Chile 2765.5 km (1714.6 mi) E of Río Gallegos, Argentina
Location Uncertainty	Horizontal: 11.8 km; Vertical 1.9 km
Parameters	Nph = 35; Dmin = 903.5 km; Rmss = 0.82 seconds; Gp = 68° Version =
Event ID	us 6000pzqt

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2025-03-19 08:13:24 (M5.1) south of the Fiji Islands -24.5 -179.9 (70fa9)

M5.1 Earthquake - south of the Fiji Islands

Preliminary Report

Magnitude	5.1
Date-Time	Universal Time (UTC): 19 Mar 2025 08:13:25 Time near the Epicenter (1): 19 Mar 2025 21:13:25 Time in your area (1): 19 Mar 2025 13:43:25
Location	24.526S 179.892W
Depth	558 km
Distances	599.9 km (372.0 mi) SW of Houma, Tonga 610.4 km (378.4 mi) SW of Nuku'alofa, Tonga 616.9 km (382.5 mi) SW of 'Ohonua, Tonga 728.6 km (451.8 mi) SSE of Suva, Fiji 733.7 km (454.9 mi) SSE of Nasinu, Fiji
Location Uncertainty	Horizontal: 15.9 km; Vertical 19.7 km
Parameters	Nph = 29; Dmin = 557.8 km; Rmss = 0.55 seconds; Gp = 98° Version =
Event ID	us 6000pzqa

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2025-03-19 08:13:10 (M5.0) Andreanof Islands, Aleutian Islands, Alaska 51.2 -176.2 (70fa9)

M5.0 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 19 Mar 2025 08:13:11 Time near the Epicenter (1): 18 Mar 2025 22:13:11 Time in your area (1): 19 Mar 2025 13:43:11
Location	51.153N 176.178W
Depth	22 km
Distances	86.2 km (53.5 mi) SSE of Adak, Alaska 1556.3 km (964.9 mi) S of Anadyr, Russia 1612.2 km (999.6 mi) ESE of Klyuchi, Russia 1730.0 km (1072.6 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1745.8 km (1082.4 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 6.0 km; Vertical 5.7 km
Parameters	Nph = 79; Dmin = 103.2 km; Rmss = 1.20 seconds; Gp = 141° Version =
Event ID	us 6000pzqc

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2025-03-19 04:25:15 (M5.0) near the west coast of Honshu, Japan 37.1 136.6 (70fa9)

M5.0 Earthquake - near the west coast of Honshu, Japan

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 19 Mar 2025 04:25:15 Time near the Epicenter (1): 19 Mar 2025 13:25:15 Time in your area (1): 19 Mar 2025 09:55:15
Location	37.084N 136.649E
Depth	10 km
Distances	25.3 km (15.7 mi) NNW of Hakui, Japan 27.8 km (17.2 mi) SW of Anamizu, Japan 28.5 km (17.7 mi) W of Nanao, Japan 39.5 km (24.5 mi) NW of Himimachi, Japan 53.8 km (33.4 mi) N of Kanazawa, Japan
Location Uncertainty	Horizontal: 5.3 km; Vertical 1.8 km
Parameters	Nph = 105; Dmin = 151.1 km; Rmss = 1.00 seconds; Gp = 59° Version =
Event ID	us 6000pzpl

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2025-03-18 22:52:35 UPDATED: (M5.4) South Sandwich Islands region -55.2 -29.1 (70fa9)

M5.4 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.4
Date-Time	Universal Time (UTC): 18 Mar 2025 22:52:36 Time near the Epicenter (1): 18 Mar 2025 20:52:36 Time in your area (1): 19 Mar 2025 04:22:36
Location	55.185S 29.132W
Depth	35 km
Distances	2383.0 km (1477.5 mi) SW of Edinburgh of the Seven Seas, Saint Helena 2473.0 km (1533.3 mi) ENE of Río Grande, Argentina 2474.9 km (1534.4 mi) ENE of Ushuaia, Argentina 2649.5 km (1642.7 mi) E of Puerto Deseado, Argentina 2657.6 km (1647.7 mi) E of Río Gallegos, Argentina
Location Uncertainty	Horizontal: 15.1 km; Vertical 2.0 km
Parameters	Nph = 44; Dmin = 484.7 km; Rmss = 0.66 seconds; Gp = 186° Version =
Event ID	us 6000pznk ***This event has been revised.

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2025-03-18 22:52:34 (M5.4) South Sandwich Islands region -55.2 -29.7 (70fa9)

M5.4 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.4
Date-Time	Universal Time (UTC): 18 Mar 2025 22:52:35 Time near the Epicenter (1): 18 Mar 2025 20:52:35 Time in your area (1): 19 Mar 2025 04:22:35
Location	55.195S 29.701W
Depth	10 km
Distances	2380.3 km (1475.8 mi) ENE of Tolhuin, Argentina 2407.1 km (1492.4 mi) SW of Edinburgh of the Seven Seas, Saint Helena 2437.3 km (1511.1 mi) ENE of Río Grande, Argentina 2439.5 km (1512.5 mi) ENE of Ushuaia, Argentina 2613.3 km (1620.3 mi) E of Puerto Deseado, Argentina
Location Uncertainty	Horizontal: 15.3 km; Vertical 2.0 km
Parameters	Nph = 40; Dmin = 449.0 km; Rmss = 0.51 seconds; Gp = 242° Version =
Event ID	us 6000pznk

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2025-03-18 21:17:48 (M5.3) Near the coast of Coquimbo, Chile -30.1 -71.3 (70fa9)

M5.3 Earthquake - Near the coast of Coquimbo, Chile

Preliminary Report

Magnitude	5.3
Date-Time	Universal Time (UTC): 18 Mar 2025 21:17:49 Time near the Epicenter (1): 18 Mar 2025 17:17:49 Time in your area (1): 19 Mar 2025 02:47:49
Location	30.067S 71.306W
Depth	63 km
Distances	13.0 km (8.1 mi) SSE of Coquimbo, Chile 18.8 km (11.7 mi) SSW of La Serena, Chile 57.4 km (35.6 mi) W of Vicuña, Chile 60.1 km (37.3 mi) N of Ovalle, Chile 77.3 km (47.9 mi) NNW of Monte Patria, Chile
Location Uncertainty	Horizontal: 4.8 km; Vertical 5.2 km
Parameters	Nph = 93; Dmin = 17.7 km; Rmss = 0.98 seconds; Gp = 109° Version =
Event ID	us 6000pzn5

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2025-03-18 12:38:55 UPDATED: (M4.8) State of Yap, Federated States of Micronesia 11.8 141.5 (70fa9)

M4.8 Earthquake - State of Yap, Federated States of Micronesia

Preliminary Report

Magnitude	4.8
Date-Time	Universal Time (UTC): 18 Mar 2025 12:38:55 Time near the Epicenter (1): 18 Mar 2025 23:38:55 Time in your area (1): 18 Mar 2025 18:08:55
Location	11.796N 141.462E
Depth	10 km
Distances	247.0 km (153.1 mi) NNE of Fais, Micronesia 384.6 km (238.5 mi) WSW of Merizo Village, Guam 406.2 km (251.9 mi) WSW of Mangilao Village, Guam 406.3 km (251.9 mi) WSW of Tamuning, Guam 406.3 km (251.9 mi) WSW of Tamuning-Tumon-Harmon Village, Guam
Location Uncertainty	Horizontal: 10.8 km; Vertical 1.9 km
Parameters	Nph = 45; Dmin = 419.5 km; Rmss = 0.67 seconds; Gp = 97° Version =
Event ID	us 6000pzk6 ***This event has been revised.

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2025-03-18 12:38:46 UPDATED: (M4.7) south of the Mariana Islands 11.0 142.4 (70fa9)

M4.7 Earthquake - south of the Mariana Islands

Preliminary Report

Magnitude	4.7
Date-Time	Universal Time (UTC): 18 Mar 2025 12:38:46 Time near the Epicenter (1): 18 Mar 2025 23:38:46 Time in your area (1): 18 Mar 2025 18:08:46
Location	11.017N 142.431E
Depth	10 km
Distances	250.9 km (155.5 mi) ENE of Fais, Micronesia 348.2 km (215.9 mi) SW of Merizo Village, Guam 372.6 km (231.0 mi) SW of Mangilao Village, Guam 374.3 km (232.1 mi) SW of Tamuning, Guam 374.3 km (232.1 mi) SW of Tamuning-Tumon-Harmon Village, Guam
Location Uncertainty	Horizontal: 11.4 km; Vertical 1.9 km
Parameters	Nph = 42; Dmin = 388.5 km; Rmss = 0.58 seconds; Gp = 116° Version =
Event ID	us 6000pzk6 ***This event has been revised.

(1) Nominal Standard Time; local and daylight savings time zone may differ.
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2025-03-18 12:38:48 (M5.3) south of the Mariana Islands 11.0 142.2 (70fa9)

M5.3 Earthquake - south of the Mariana Islands

Preliminary Report

Magnitude	5.3
Date-Time	Universal Time (UTC): 18 Mar 2025 12:38:48 Time near the Epicenter (1): 18 Mar 2025 23:38:48 Time in your area (1): 18 Mar 2025 18:08:48
Location	11.016N 142.182E
Depth	10 km
Distances	228.6 km (141.7 mi) NE of Fais, Micronesia 367.7 km (228.0 mi) SW of Merizo Village, Guam 391.9 km (243.0 mi) SW of Mangilao Village, Guam 393.4 km (243.9 mi) SW of Tamuning, Guam 393.4 km (243.9 mi) SW of Tamuning-Tumon-Harmon Village, Guam
Location Uncertainty	Horizontal: 11.7 km; Vertical 1.9 km
Parameters	Nph = 38; Dmin = 407.6 km; Rmss = 0.60 seconds; Gp = 112° Version =
Event ID	us 6000pzk6

(1) Nominal Standard Time; local and daylight savings time zone may differ.
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