Light earthquake, 4.1 mag was detected near Nemuro in Japan

A light earthquake magnitude 4.1 (ml/mb) has struck on Thursday, 39 kilometers (24 miles) from Nemuro in Japan. Exact location of event, depth 55.608 km, 145.3606° East, 43.0011° North. The epicenter was at a depth of 55.608 km (35 miles). The 4.1-magnitude earthquake has occurred at 01:38:48 / 1:38 am (local time epicenter). Event id: us7000rf2c. Ids that are associated to the earthquake: us7000rf2c. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 13/11/25 / 2025-11-13 01:38:48 / November 13, 2025 @ 1:38 am UTC/GMT.

Close country/countries that might be effected, Japan (c. 127 288 000 pop). The epicenter was 80 km (50 miles) from Kushiro (c. 183 600 pop), 40 km (25 miles) from Nemuro (c. 31 200 pop), 75 km (47 miles) from Shibetsu (c. 21 700 pop). Closest city/cities/towns to epicentrum/hypocenter was Kushiro, Shibetsu, Nemuro (min 5000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been four, in the last 10 days four, in the past 30 days six and in the last 365 days sixty-seven earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel it?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 39 km SSW of Nemuro, Japan.

More information

Parameter	Value	Description
Magnitude	4.1 mb	The magnitude for the event.
Longitude	145.3606° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	43.0011° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	55.608 km	Depth of the event in kilometers.
Place	39 km SSW of Nemuro, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-11-13 01:38:48	Time when the event occurred. UTC/GMT
Updated	2025-12-05 06:28:10	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	259	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	1.904	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.61 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	184	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	us7000rf2c	Id of event.
Event Code	7000rf2c	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000rf2c,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.1 mag was detected near Nemuro in Japan

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