Light earthquake 4.7 mag, 100 km SE of Pangai, Tonga

A light earthquake with magnitude 4.7 (ml/mb) was reported 100 km SE of Pangai, Tonga (62 miles) on Monday. Exact location of earthquake, -173.8131° West, -20.568° South, depth 10 km. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. Unique identifier: us6000q55s. Ids that are associated to the event: us6000q55s. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 31/03/25 / 2025-03-31 00:23:58 / March 31, 2025 @ 12:23 am. The 4.7-magnitude earthquake was detected at 00:23:58 / 12:23 am (local time epicenter).

Each year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been fifteen, in the last 10 days fifteen, in the past 30 days eighteen and in the last 365 days fifty-four earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel the quake?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 100 km SE of Pangai, Tonga. This information comes from the USGS Earthquake Notification Service.

Pangai Tonga

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Parameter	Value	Description
Magnitude	4.7 mb	The magnitude for the event.
Longitude	-173.8131° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-20.568° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10 km	Depth of the event in kilometers.
Place	100 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	2025-03-31 00:23:58	Time when the event occurred. UTC/GMT
Updated	2025-04-10 21:22:40	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	0	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	340	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	,us,	A comma-separated list of network contributors.
Number of Stations Used	20	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	3.948	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.45 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	126	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	mb	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us6000q55s	Id of event.
Event Code	6000q55s	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000q55s,	A comma-separated list of event ids that are associated to an event.

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Light earthquake 4.7 mag, 100 km SE of Pangai, Tonga

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