Light earthquake, 4.3 mag was detected near Honchō in Japan

A light earthquake magnitude 4.3 (ml/mb) strikes 109 km S of Honchō, Japan (68 miles) on Sunday. The earthquake occurred at a depth of 47.858 km (30 miles) below the earth’s surface. The temblor was reported at 19:32:37 / 7:32 pm (local time epicenter). Exact location of event, depth 47.858 km, 143.1026° East, 41.154° North. Global date and time of event UTC/GMT: 21/12/25 / 2025-12-21 19:32:37 / December 21, 2025 @ 7:32 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us6000rwde. Id of event: us6000rwde.

In the past 24 hours, there have been two, in the last 10 days fifteen, in the past 30 days thirty-seven and in the last 365 days seventy-six earthquakes of magnitude 3.0 or greater that have been detected nearby. Every 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.

Did you feel anything?

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: 109 km S of Honchō, Japan.

Honchō Japan

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Parameter	Value	Description
Magnitude	4.3 mb	The magnitude for the event.
Longitude	143.1026° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	41.154° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	47.858 km	Depth of the event in kilometers.
Place	109 km S of Honchō, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-12-21 19:32:37	Time when the event occurred. UTC/GMT
Updated	2025-12-21 20:05:25	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	41	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.861	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.65 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	148	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	us6000rwde	Id of event.
Event Code	6000rwde	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000rwde,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.3 mag was detected near Honchō in Japan

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