Light earthquake 4 mag, Fiji region

A light earthquake magnitude 4 (ml/mb) strikes Fiji region (0 miles) on Tuesday. Event ids that are associated to the earthquake: us6000rmt8. Id of event: us6000rmt8. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 13:10:48 / 1:10 pm (local time epicenter). Exact location of event, longitude -179.4793 West, latitude -21.6699 South, depth = 611.548 km. Global date and time of event UTC/GMT: 21/10/25 / 2025-10-21 13:10:48 / October 21, 2025 @ 1:10 pm. The earthquake occurred at a depth of 611.548 km (380 miles) below the earth’s surface.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been four, in the last 10 days five, in the past 30 days ten and in the last 365 days seventy-four earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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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. 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: Fiji region.

Fiji region

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Parameter	Value	Description
Magnitude	4 mb	The magnitude for the event.
Longitude	-179.4793° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-21.6699° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	611.548 km	Depth of the event in kilometers.
Place	Fiji region	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-10-21 13:10:48	Time when the event occurred. UTC/GMT
Updated	2025-11-13 16:39:15	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	246	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	16	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	4.544	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.6 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	141	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	us6000rmt8	Id of event.
Event Code	6000rmt8	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000rmt8,	A comma-separated list of event ids that are associated to an event.

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Light earthquake 4 mag, Fiji region

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