CRISISINFO

Event summary

Base data

UniqID	PAAQ-1-stxrjc
Data provider	tsunami.gov (Pacific East)
Issue Time	2025-03-30 12:29:02 [UTC]
Expire date	2025-03-30 13:29:02 [UTC]
Active data	No

Location Nearest settlement

Continet	Pacific Ocean - East
Country	Tonga
Administration area	Ha`apai
Settlement	Pangai
Distance and Direction	132 km of SE

Information about the triggering event

Magnitude	M7.3
Depth	55 km
Underwater	Yes
Water depth	-8321 meters
Sea region	South Pacific
Sea name	South Pacific Ocean

Known information about the tsunami

Event description	This is a Tsunami Information Statement for Alaska, British Columbia, Washington, Oregon, and California. - Event details: Preliminary magnitude 7.3 (Mwp) earthquake / Lat: -20.600, Lon: -173.400 at 2025-03-30T12:18:47 UTC An information statement indicates that an earthquake has occurred, but does not pose a tsunami threat, or that a tsunami warning, advisory, or watch has been issued for another section of the ocean.
Instruction	There is no tsunami danger for the U.S. West Coast, British Columbia, or Alaska. Based on earthquake information and historic tsunami records, the earthquake is not expected to generate a tsunami. This will be the only U.S. National Tsunami Warning Center message for this event unless additional information becomes available. Refer to the internet site tsunami.gov for more information.

Event description

This is a Tsunami Information Statement for Alaska, British Columbia, Washington, Oregon, and California. - Event details: Preliminary magnitude 7.3 (Mwp) earthquake / Lat: -20.600, Lon: -173.400 at 2025-03-30T12:18:47 UTC An information statement indicates that an earthquake has occurred, but does not pose a tsunami threat, or that a tsunami warning, advisory, or watch has been issued for another section of the ocean.

Instruction

There is no tsunami danger for the U.S. West Coast, British Columbia, or Alaska. Based on earthquake information and historic tsunami records, the earthquake is not expected to generate a tsunami. This will be the only U.S. National Tsunami Warning Center message for this event unless additional information becomes available. Refer to the internet site tsunami.gov for more information.