2026-03-25 10:59:33 (M5.0) New Britain region, Papua New Guinea -5.8 152.1 (70fa9)

M5.0 Earthquake - New Britain region, Papua New Guinea

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 25 Mar 2026 10:59:34 Time near the Epicenter (1): 25 Mar 2026 21:59:34 Time in your area (1): 25 Mar 2026 16:29:34
Location	5.820S 152.074E
Depth	10 km
Distances	164.8 km (102.2 mi) S of Kokopo, Papua New Guinea 216.6 km (134.3 mi) E of Kimbe, Papua New Guinea 386.1 km (239.4 mi) SSE of Kavieng, Papua New Guinea 389.2 km (241.3 mi) W of Arawa, Papua New Guinea 528.1 km (327.4 mi) NNE of Alotau, Papua New Guinea
Location Uncertainty	Horizontal: 11.9 km; Vertical 1.9 km
Parameters	Nph = 38; Dmin = 180.3 km; Rmss = 0.51 seconds; Gp = 141° Version =
Event ID	us 7000s7in

(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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2026-03-25 10:17:29 (M5.2) Tonga -15.6 -174.5 (70fa9)

M5.2 Earthquake - Tonga

Preliminary Report

Magnitude	5.2
Date-Time	Universal Time (UTC): 25 Mar 2026 10:17:30 Time near the Epicenter (1): 25 Mar 2026 23:17:30 Time in your area (1): 25 Mar 2026 15:47:30
Location	15.626S 174.463W
Depth	198 km
Distances	80.2 km (49.7 mi) WNW of Hihifo, Tonga 351.6 km (218.0 mi) SW of Apia, Samoa 431.2 km (267.3 mi) WSW of Pago Pago, American Samoa 614.9 km (381.2 mi) N of Nuku'alofa, Tonga 666.5 km (413.2 mi) E of Labasa, Fiji
Location Uncertainty	Horizontal: 9.7 km; Vertical 7.2 km
Parameters	Nph = 96; Dmin = 345.3 km; Rmss = 0.72 seconds; Gp = 55° Version =
Event ID	us 7000s7ha

(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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2026-03-25 10:10:59 (M5.6) Tonga -15.5 -174.4 (70fa9)

M5.6 Earthquake - Tonga

Preliminary Report

Magnitude	5.6
Date-Time	Universal Time (UTC): 25 Mar 2026 10:11:00 Time near the Epicenter (1): 25 Mar 2026 23:11:00 Time in your area (1): 25 Mar 2026 15:41:00
Location	15.514S 174.393W
Depth	198 km
Distances	80.4 km (49.9 mi) NW of Hihifo, Tonga 338.6 km (209.9 mi) WSW of Apia, Samoa 420.0 km (260.4 mi) WSW of Pago Pago, American Samoa 628.2 km (389.5 mi) N of Nuku'alofa, Tonga 675.9 km (419.0 mi) E of Labasa, Fiji
Location Uncertainty	Horizontal: 11.2 km; Vertical 9.4 km
Parameters	Nph = 38; Dmin = 332.3 km; Rmss = 0.93 seconds; Gp = 98° Version =
Event ID	us 7000s7h9

(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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2026-03-24 20:59:35 UPDATED: (M5.2) Rat Islands, Aleutian Islands, Alaska 52.2 176.4 (70fa9)

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

Preliminary Report

Magnitude	5.2
Date-Time	Universal Time (UTC): 24 Mar 2026 20:59:36 Time near the Epicenter (1): 24 Mar 2026 10:59:36 Time in your area (1): 25 Mar 2026 02:29:36
Location	52.227N 176.413E
Depth	10 km
Distances	229.5 km (142.3 mi) ESE of Attu Station, Alaska 1108.6 km (687.3 mi) ESE of Klyuchi, Russia 1204.3 km (746.7 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1220.0 km (756.4 mi) E of Vilyuchinsk, Russia 1220.2 km (756.5 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 5.9 km; Vertical 1.8 km
Parameters	Nph = 111; Dmin = 147.0 km; Rmss = 0.51 seconds; Gp = 54° Version =
Event ID	us 7000s7ee ***This event supersedes event AKa2026fwdhul.

(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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Your account has aftershock exclusion turned on. This event fell into the 'US7000s211' exclusion region, but was large enough to trigger notification.
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2026-03-24 20:59:34 (M5.5) Rat Islands, Aleutian Islands, Alaska 51.9 176.0 (70fa9)

M5.5 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.5
Date-Time	Universal Time (UTC): 24 Mar 2026 20:59:34 Time near the Epicenter (1): 24 Mar 2026 10:59:34 Time in your area (1): 25 Mar 2026 02:29:34
Location	51.919N 176.032E
Depth	15 km
Distances	219.5 km (136.1 mi) ESE of Attu Station, Alaska 1104.1 km (684.5 mi) ESE of Klyuchi, Russia 1186.0 km (735.3 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1201.3 km (744.8 mi) ESE of Vilyuchinsk, Russia 1202.4 km (745.5 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 11.9 km; Vertical 6.1 km
Parameters	Nph = 91; Dmin = 155.7 km; Rmss = 1.20 seconds; Gp = 202° Version =
Event ID	ak a2026fwdhul

(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
Alaska Earthquake Center
Geophysical Institute, University of Alaska Fairbanks

https://earthquake.alaska.edu

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