Light earthquake: M4.2 quake has struck near Tomioka in Japan

A light earthquake magnitude 4.2 (ml/mb) has struck on Wednesday, 101 km E of Tomioka, Japan (63 miles). Unique identifier: us6000q3yw. Ids that are associated to the event: us6000q3yw. The earthquake occurred at a depth of 35.919 km (22 miles). Exact location, longitude 142.1638° East, latitude 37.3121° North, depth = 35.919 km. The temblor was picked up at 16:27:38 / 4:27 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 26/03/25 / 2025-03-26 16:27:38 / March 26, 2025 @ 4:27 pm UTC/GMT.

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 one, in the last 10 days two, in the past 30 days four and in the last 365 days fourty-five earthquakes of magnitude 3.0 or greater that has struck near.

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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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 101 km E of Tomioka, Japan. This data comes from the USGS Earthquake Notification Service.

Japan Tomioka

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Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	142.1638° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	37.3121° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	35.919 km	Depth of the event in kilometers.
Place	101 km E of Tomioka, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-03-26 16:27:38	Time when the event occurred. UTC/GMT
Updated	2025-04-05 03:30:02	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	271	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	22	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	3.261	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.1 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	154	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	us6000q3yw	Id of event.
Event Code	6000q3yw	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000q3yw,	A comma-separated list of event ids that are associated to an event.

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Light earthquake: M4.2 quake has struck near Tomioka in Japan

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