Light earthquake, 4.2 mag has occurred near Houma in Tonga

A light earthquake magnitude 4.2 (ml/mb) has struck on Tuesday, 288 km WNW of Houma, Tonga (179 miles). Unique identifier: us7000qxdt. Ids that are associated to the event: us7000qxdt. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 15:48:46 / 3:48 pm (local time epicenter). Exact time and date of earthquake 26/08/25 / 2025-08-26 15:48:46 / August 26, 2025 @ 3:48 pm UTC/GMT. Exact location of earthquake, -177.8674° West, -20.1773° South, depth 561.946 km. The epicenter was at a depth of 561.946 km (349 miles).

There are an estimated 13,000 light quakes in the world each year. In the past 24 hours, there have been seven, in the last 10 days nine, in the past 30 days thirteen and in the last 365 days one hundred and twenty-eight earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 288 km WNW of Houma, Tonga. This data comes from the USGS Earthquake Notification Service.

Houma Tonga

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Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	-177.8674° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-20.1773° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	561.946 km	Depth of the event in kilometers.
Place	288 km WNW of Houma, Tonga	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-08-26 15:48:46	Time when the event occurred. UTC/GMT
Updated	2025-09-20 21:48:42	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	271	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	29	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	4.519	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.57 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	136	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	us7000qxdt	Id of event.
Event Code	7000qxdt	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000qxdt,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.2 mag has occurred near Houma in Tonga

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