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Major earthquake: M7.1 quake has struck near Pangai in Tonga

Posted by admin on March 30, 2025 0 Comments

Earthquake location -20.4169S, -173.7724WA major earthquake with magnitude 7.1 (ml/mb) was reported 90 kilometers (56 miles) from Pangai in Tonga on Sunday. All ids that are associated to the event: at00stxrjc, pt25089000, us7000pntq. Unique identifier: us7000pntq. Exact time and date of event in UTC/GMT: 30/03/25 / 2025-03-30 12:18:43 / March 30, 2025 @ 12:18 pm. The temblor was reported at 12:18:43 / 12:18 pm (local time epicenter). A tsunami warning has been issued near Pangai in Tonga (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 10 km (6 miles). Exact location of event, depth 10 km, -173.7724° West, -20.4169° South.

Nearest cities/city/villages to epicentrum/hypocenter was Pangai (min 5000 pop). Epicenter of the event was 90 km (56 miles) from Pangai (c. 1 700 pop). Close country/countries that might be effected, Tonga (c. 123 000 pop).

Earthquakes 7.0 to 7.9 may cause serious damage. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days four and in the last 365 days fourty-one earthquakes of magnitude 3.0 or greater that have been detected nearby. Every year there are an estimated 15 major earthquakes in the world.

How would you describe the shaking?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 90 km SE of Pangai, Tonga.

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More information

Parameter Value Description
Magnitude 7.1 mb The magnitude for the event.
Longitude -173.7724° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -20.4169° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 90 km SE of Pangai, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-03-30 12:18:43 Time when the event occurred. UTC/GMT
Updated 2025-03-30 12:34:04 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 1 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 776 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at,pt,us, A comma-separated list of network contributors.
Number of Stations Used 40 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 3.859 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.07 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 115 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mww The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000pntq Id of event.
Event Code 7000pntq An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00stxrjc,pt25089000,us7000pntq, A comma-separated list of event ids that are associated to an event.

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