Moderate earthquake 5.1 mag, 130 km NE of Kuji, Japan

A moderate earthquake magnitude 5.1 (ml/mb) has struck on Tuesday, 130 km NE of Kuji, Japan (81 miles). The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. The temblor was reported at 05:38:47 / 5:38 am (local time epicenter). Exact time and date of event in UTC/GMT: 16/12/25 / 2025-12-16 05:38:47 / December 16, 2025 @ 5:38 am. Event id: us6000rv85. Ids that are associated to the earthquake: us6000rv85. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude 143.0113 East, latitude 40.8882 North, depth = 10 km.

There are an estimated 1320 moderate earthquakes in the world each year. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. In the past 24 hours, there have been two, in the last 10 days thirty-one, in the past 30 days thirty-three and in the last 365 days seventy-two earthquakes of magnitude 3.0 or greater that was reported nearby.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 130 km NE of Kuji, Japan.

Japan Kuji

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Parameter	Value	Description
Magnitude	5.1 mb	The magnitude for the event.
Longitude	143.0113° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	40.8882° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10 km	Depth of the event in kilometers.
Place	130 km NE of Kuji, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-12-16 05:38:47	Time when the event occurred. UTC/GMT
Updated	2025-12-16 05:55:38	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	400	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	109	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.48	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	95	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	us6000rv85	Id of event.
Event Code	6000rv85	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000rv85,	A comma-separated list of event ids that are associated to an event.

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Moderate earthquake 5.1 mag, 130 km NE of Kuji, Japan

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