Light earthquake, 4.3 mag strikes near Hihifo in Tonga

A light earthquake with magnitude 4.3 (ml/mb) was detected on Saturday, 67 kilometers (42 miles) from Hihifo in Tonga. Exact time and date of earthquake 27/09/25 / 2025-09-27 03:33:29 / September 27, 2025 @ 3:33 am UTC/GMT. The temblor was picked up at 03:33:29 / 3:33 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -174.3801 West, latitude -15.7345 South, depth = 187.627 km. Event id: us6000rhuy. Ids that are associated to the earthquake: us6000rhuy. The earthquake was roughly at a depth of 187.627 km (117 miles).

Close country/countries that might be effected, Tonga (c. 123 000 pop). Epicenter of the earthquake was 67 km (42 miles) from Hihifo (c. 800 pop). Nearest cities/city/villages to epicentrum/hypocenter was Hihifo (min 5000 pop).

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 two, in the last 10 days two, in the past 30 days six and in the last 365 days sixty-three earthquakes of magnitude 3.0 or greater that have been detected nearby.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 67 km WNW of Hihifo, Tonga. This information comes from the USGS Earthquake Notification Service.

Hihifo Tonga

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Parameter	Value	Description
Magnitude	4.3 mb	The magnitude for the event.
Longitude	-174.3801° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-15.7345° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	187.627 km	Depth of the event in kilometers.
Place	67 km WNW of Hihifo, Tonga	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-09-27 03:33:29	Time when the event occurred. UTC/GMT
Updated	2025-10-19 00:41:35	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	284	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	30	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	6.052	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.79 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	125	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	us6000rhuy	Id of event.
Event Code	6000rhuy	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000rhuy,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.3 mag strikes near Hihifo in Tonga

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