2026-09-17 06:48:41 (M5.0) South Atlantic Ocean -22.6 -20.3 (70fa9)

M5.0 Earthquake - South Atlantic Ocean

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 17 Sep 2026 06:48:42 Time near the Epicenter (1): 17 Sep 2026 05:48:42 Time in your area (1): 17 Sep 2026 12:18:42
Location	22.587S 20.346W
Depth	10 km
Distances	1703.5 km (1056.2 mi) WSW of Jamestown, Saint Helena 1742.1 km (1080.1 mi) SSW of Georgetown, Saint Helena 2053.0 km (1272.8 mi) E of Nova Viçosa, Brazil 2057.3 km (1275.5 mi) ESE of Prado, Brazil 2064.6 km (1280.0 mi) E of Mucuri, Brazil
Location Uncertainty	Horizontal: 7.8 km; Vertical 1.8 km
Parameters	Nph = 30; Dmin = 2526.7 km; Rmss = 0.46 seconds; Gp = 61° Version =
Event ID	us 7000thzz

(1) Nominal Standard Time; local and daylight savings time zone may differ.
For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
National Earthquake Information Center
U.S. Geological Survey


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2026-09-17 06:42:41 (M5.3) Samoa Islands region -14.5 -174.9 (70fa9)

M5.3 Earthquake - Samoa Islands region

Preliminary Report

Magnitude	5.3
Date-Time	Universal Time (UTC): 17 Sep 2026 06:42:42 Time near the Epicenter (1): 17 Sep 2026 18:42:42 Time in your area (1): 17 Sep 2026 12:12:42
Location	14.479S 174.896W
Depth	10 km
Distances	191.5 km (118.7 mi) SE of Mata-Utu, Wallis and Futuna 201.5 km (124.9 mi) NW of Hihifo, Tonga 345.3 km (214.1 mi) WSW of Apia, Samoa 452.8 km (280.7 mi) W of Pago Pago, American Samoa 652.8 km (404.7 mi) ENE of Labasa, Fiji
Location Uncertainty	Horizontal: 13.7 km; Vertical 1.9 km
Parameters	Nph = 35; Dmin = 341.6 km; Rmss = 1.14 seconds; Gp = 103° Version =
Event ID	us 7000thzw

(1) Nominal Standard Time; local and daylight savings time zone may differ.
For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
National Earthquake Information Center
U.S. Geological Survey


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2026-09-17 06:20:48 (M5.2) Molucca Sea 1.3 126.3 (70fa9)

M5.2 Earthquake - Molucca Sea

Preliminary Report

Magnitude	5.2
Date-Time	Universal Time (UTC): 17 Sep 2026 06:20:49 Time near the Epicenter (1): 17 Sep 2026 15:20:49 Time in your area (1): 17 Sep 2026 11:50:49
Location	1.316N 126.309E
Depth	10 km
Distances	132.2 km (81.9 mi) E of Bitung, Indonesia 133.0 km (82.5 mi) WNW of Ternate, Indonesia 153.1 km (94.9 mi) WNW of Sofifi, Indonesia 155.4 km (96.4 mi) E of Tondano, Indonesia 163.6 km (101.4 mi) E of Manado, Indonesia
Location Uncertainty	Horizontal: 11.7 km; Vertical 1.9 km
Parameters	Nph = 71; Dmin = 1896.6 km; Rmss = 0.96 seconds; Gp = 87° Version =
Event ID	us 7000thzp

(1) Nominal Standard Time; local and daylight savings time zone may differ.
For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
National Earthquake Information Center
U.S. Geological Survey


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2026-09-17 04:06:53 (M5.3) Tonga -17.3 -173.4 (70fa9)

M5.3 Earthquake - Tonga

Preliminary Report

Magnitude	5.3
Date-Time	Universal Time (UTC): 17 Sep 2026 04:06:54 Time near the Epicenter (1): 17 Sep 2026 17:06:54 Time in your area (1): 17 Sep 2026 09:36:54
Location	17.323S 173.448W
Depth	10 km
Distances	156.0 km (96.7 mi) SSE of Hihifo, Tonga 426.2 km (264.2 mi) SSW of Apia, Samoa 447.2 km (277.3 mi) SW of Pago Pago, American Samoa 460.6 km (285.6 mi) NNE of Nuku‘alofa, Tonga 772.2 km (478.7 mi) E of Labasa, Fiji
Location Uncertainty	Horizontal: 7.9 km; Vertical 1.8 km
Parameters	Nph = 69; Dmin = 417.6 km; Rmss = 0.65 seconds; Gp = 50° Version =
Event ID	us 7000thz3

(1) Nominal Standard Time; local and daylight savings time zone may differ.
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see: Event Page or USGS Earthquake Hazards Program
National Earthquake Information Center
U.S. Geological Survey


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2026-09-16 18:06:40 (M5.1) Rota region, Northern Mariana Islands 14.3 145.5 (70fa9)

M5.1 Earthquake - Rota region, Northern Mariana Islands

Preliminary Report

Magnitude	5.1
Date-Time	Universal Time (UTC): 16 Sep 2026 18:06:41 Time near the Epicenter (1): 17 Sep 2026 04:06:41 Time in your area (1): 16 Sep 2026 23:36:41
Location	14.287N 145.473E
Depth	110 km
Distances	77.1 km (47.8 mi) SSW of San Jose Village, Northern Mariana Islands 104.3 km (64.7 mi) NE of Yigo Village, Guam 106.8 km (66.2 mi) SSW of Saipan, Northern Mariana Islands 109.2 km (67.7 mi) NE of Dededo Village, Guam 115.8 km (71.8 mi) NE of Tamuning-Tumon-Harmon Village, Guam
Location Uncertainty	Horizontal: 9.3 km; Vertical 4.8 km
Parameters	Nph = 201; Dmin = 110.2 km; Rmss = 0.70 seconds; Gp = 20° Version =
Event ID	us 7000thwt

(1) Nominal Standard Time; local and daylight savings time zone may differ.
For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
National Earthquake Information Center
U.S. Geological Survey


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