Light earthquake, 4.4 mag was detected near Koshima in Japan

A light earthquake magnitude 4.4 (ml/mb) strikes 116 km S of Koshima, Japan (72 miles) on Friday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 47.536 km (30 miles). Exact location of event, longitude 130.5794 East, latitude 29.1883 North, depth = 47.536 km. Event id: us6000q5bg. Ids that are associated to the earthquake: us6000q5bg. Global date and time of event UTC/GMT: 11/04/25 / 2025-04-11 05:15:49 / April 11, 2025 @ 5:15 am. The temblor was reported at 05:15:49 / 5:15 am (local time epicenter).

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. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days three and in the last 365 days fourty-four earthquakes of magnitude 3.0 or greater that has struck near.

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Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 116 km S of Koshima, Japan.

Japan Koshima

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Parameter	Value	Description
Magnitude	4.4 mb	The magnitude for the event.
Longitude	130.5794° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	29.1883° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	47.536 km	Depth of the event in kilometers.
Place	116 km S of Koshima, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-04-11 05:15:49	Time when the event occurred. UTC/GMT
Updated	2025-04-11 06:12:02	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	298	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	38	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	2.316	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.07 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	139	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	us6000q5bg	Id of event.
Event Code	6000q5bg	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000q5bg,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.4 mag was detected near Koshima in Japan

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