Strong earthquake 6.4 mag, 137 km W of Neiafu, Tonga

A earthquake magnitude 6.4 (ml/mb) strikes 137 km W of Neiafu, Tonga (85 miles) on Wednesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us7000pz41. Ids that are associated to the event: us7000pz41. Global date and time of event UTC/GMT: 14/05/25 / 2025-05-14 04:15:38 / May 14, 2025 @ 4:15 am. Exact location of event, depth 243.075 km, -175.2831° West, -18.7201° South. The earthquake was roughly at a depth of 243.075 km (151 miles). The 6.4-magnitude earthquake was detected at 04:15:38 / 4:15 am (local time epicenter).

Each year there are an estimated 135 quakes in the world. Earthquakes 6.0 to 6.9 may cause a lot of damage in very populated areas. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days four and in the last 365 days thirty-four earthquakes of magnitude 3.0 or greater that was reported nearby.

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How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 137 km W of Neiafu, Tonga.

Neiafu Tonga

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Parameter	Value	Description
Magnitude	6.4 mb	The magnitude for the event.
Longitude	-175.2831° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-18.7201° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	243.075 km	Depth of the event in kilometers.
Place	137 km W of Neiafu, Tonga	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-05-14 04:15:38	Time when the event occurred. UTC/GMT
Updated	2025-05-14 04:35:17	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	3.632	The maximum estimated instrumental intensity for the event.
Alert Level	green	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	630	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	69	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	5.083	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.95 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	73	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	us7000pz41	Id of event.
Event Code	7000pz41	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000pz41,	A comma-separated list of event ids that are associated to an event.

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Strong earthquake 6.4 mag, 137 km W of Neiafu, Tonga

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