Light earthquake 4.2 mag, south of the Fiji Islands

A light earthquake magnitude 4.2 (ml/mb) strikes south of the Fiji Islands (0 miles) on Saturday. The earthquake occurred at a depth of 559.509 km (348 miles). Exact location of earthquake, longitude -179.9715 West, latitude -23.1482 South, depth = 559.509 km. The 4.2-magnitude earthquake was detected at 03:12:44 / 3:12 am (local time epicenter). Unique identifier: us6000qkma. Ids that are associated to the event: us6000qkma. Exact time and date of event in UTC/GMT: 31/05/25 / 2025-05-31 03:12:44 / May 31, 2025 @ 3:12 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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

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. 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: south of the Fiji Islands.

the Fiji Islands

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Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	-179.9715° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-23.1482° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	559.509 km	Depth of the event in kilometers.
Place	south of the Fiji Islands	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-05-31 03:12:44	Time when the event occurred. UTC/GMT
Updated	2025-06-18 00:58:32	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	21	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	5.686	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.38 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	185	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	us6000qkma	Id of event.
Event Code	6000qkma	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000qkma,	A comma-separated list of event ids that are associated to an event.

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Light earthquake 4.2 mag, south of the Fiji Islands

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