2026-05-27 14:51:04 (M6.0) western Indian-Antarctic Ridge -50.5 139.4 (70fa9)

M6.0 Earthquake - western Indian-Antarctic Ridge

Preliminary Report

Magnitude	6.0
Date-Time	Universal Time (UTC): 27 May 2026 14:51:04 Time near the Epicenter (1): 27 May 2026 23:51:04 Time in your area (1): 27 May 2026 20:21:04
Location	50.517S 139.368E
Depth	10 km
Distances	999.2 km (619.5 mi) SW of Geeveston, Australia 1033.4 km (640.7 mi) SW of Kingston, Australia 1041.9 km (646.0 mi) SW of Sandy Bay, Australia 1043.6 km (647.0 mi) SW of Hobart, Australia 1045.5 km (648.2 mi) SW of Glenorchy, Australia
Location Uncertainty	Horizontal: 11.6 km; Vertical 1.9 km
Parameters	Nph = 37; Dmin = 1040.9 km; Rmss = 0.76 seconds; Gp = 96° Version =
Event ID	us 7000snvr

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


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2026-05-26 16:22:50 (M5.1) Pacific-Antarctic Ridge -58.6 -152.5 (70fa9)

M5.1 Earthquake - Pacific-Antarctic Ridge

Preliminary Report

Magnitude	5.1
Date-Time	Universal Time (UTC): 26 May 2026 16:22:50 Time near the Epicenter (1): 26 May 2026 06:22:50 Time in your area (1): 26 May 2026 21:52:50
Location	58.644S 152.513W
Depth	10 km
Distances	2317.6 km (1436.9 mi) SE of Waitangi, New Zealand 2845.9 km (1764.4 mi) ESE of Dunedin, New Zealand 2879.6 km (1785.3 mi) ESE of Oamaru, New Zealand 2912.7 km (1805.9 mi) ESE of Christchurch, New Zealand 2914.1 km (1806.8 mi) ESE of Parklands, New Zealand
Location Uncertainty	Horizontal: 13.0 km; Vertical 1.8 km
Parameters	Nph = 66; Dmin = 2614.2 km; Rmss = 0.56 seconds; Gp = 55° Version =
Event ID	us 7000sntl

(1) Nominal Standard Time; local and daylight savings time zone may differ.
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2026-05-27 05:23:30 (M5.1) Antofagasta, Chile -22.3 -68.8 (70fa9)

M5.1 Earthquake - Antofagasta, Chile

Preliminary Report

Magnitude	5.1
Date-Time	Universal Time (UTC): 27 May 2026 05:23:30 Time near the Epicenter (1): 27 May 2026 01:23:30 Time in your area (1): 27 May 2026 10:53:30
Location	22.282S 68.751W
Depth	102 km
Distances	26.3 km (16.3 mi) NE of Calama, Chile 150.7 km (93.4 mi) E of Tocopilla, Chile 196.4 km (121.8 mi) ENE of Mejillones, Chile 226.8 km (140.6 mi) NE of Antofagasta, Chile 263.3 km (163.2 mi) SSE of La Tirana, Chile
Location Uncertainty	Horizontal: 3.4 km; Vertical 4.7 km
Parameters	Nph = 75; Dmin = 73.8 km; Rmss = 1.40 seconds; Gp = 43° Version =
Event ID	us 7000snt8

(1) Nominal Standard Time; local and daylight savings time zone may differ.
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2026-05-26 19:25:11 (M5.0) Tonga -17.3 -174.2 (70fa9)

M5.0 Earthquake - Tonga

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 26 May 2026 19:25:12 Time near the Epicenter (1): 27 May 2026 08:25:12 Time in your area (1): 27 May 2026 00:55:12
Location	17.270S 174.210W
Depth	118 km
Distances	152.2 km (94.4 mi) SSW of Hihifo, Tonga 440.5 km (273.1 mi) NNE of Nuku‘alofa, Tonga 461.9 km (286.3 mi) SW of Apia, Samoa 500.8 km (310.5 mi) SW of Pago Pago, American Samoa 691.0 km (428.4 mi) E of Labasa, Fiji
Location Uncertainty	Horizontal: 10.1 km; Vertical 6.9 km
Parameters	Nph = 67; Dmin = 453.6 km; Rmss = 0.77 seconds; Gp = 57° Version =
Event ID	us 7000snpf

(1) Nominal Standard Time; local and daylight savings time zone may differ.
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2026-05-26 19:12:31 (M5.4) Tonga region -17.7 -172.6 (70fa9)

M5.4 Earthquake - Tonga region

Preliminary Report

Magnitude	5.4
Date-Time	Universal Time (UTC): 26 May 2026 19:12:31 Time near the Epicenter (1): 27 May 2026 08:12:31 Time in your area (1): 27 May 2026 00:42:31
Location	17.665S 172.621W
Depth	10 km
Distances	180.8 km (112.1 mi) NE of Neiafu, Tonga 427.4 km (265.0 mi) SSW of Pago Pago, American Samoa 433.8 km (269.0 mi) SSW of Apia, Samoa 470.2 km (291.5 mi) NE of Nuku‘alofa, Tonga 864.0 km (535.7 mi) E of Labasa, Fiji
Location Uncertainty	Horizontal: 9.1 km; Vertical 1.9 km
Parameters	Nph = 85; Dmin = 324.5 km; Rmss = 0.88 seconds; Gp = 41° Version =
Event ID	us 7000snpe

(1) Nominal Standard Time; local and daylight savings time zone may differ.
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2026-05-26 18:56:36 (M5.1) Owen Fracture Zone region 13.0 57.6 (70fa9)

M5.1 Earthquake - Owen Fracture Zone region

Preliminary Report

Magnitude	5.1
Date-Time	Universal Time (UTC): 26 May 2026 18:56:37 Time near the Epicenter (1): 26 May 2026 22:56:37 Time in your area (1): 27 May 2026 00:26:37
Location	13.001N 57.647E
Depth	10 km
Distances	395.7 km (245.3 mi) E of Hadibu, Yemen 585.9 km (363.3 mi) SE of Şalālah, Oman 687.9 km (426.5 mi) ESE of Al Ghayz̧ah, Yemen 727.1 km (450.8 mi) E of Bereeda, Somalia 840.9 km (521.4 mi) ENE of Bandarbeyla, Somalia
Location Uncertainty	Horizontal: 9.6 km; Vertical 1.8 km
Parameters	Nph = 132; Dmin = 1329.8 km; Rmss = 0.61 seconds; Gp = 55° Version =
Event ID	us 7000snpd

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