Light earthquake, 4.3 mag strikes near Mutsu in Japan

A light earthquake magnitude 4.3 (ml/mb) has struck on Saturday, 67 kilometers (42 miles) from Mutsu in Japan. Exact location, longitude 141.9449° East, latitude 41.5581° North, depth = 66.169 km. The earthquake occurred at a depth of 66.169 km (41 miles) below the earth’s surface. The temblor was picked up at 01:07:35 / 1:07 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 12/07/25 / 2025-07-12 01:07:35 / July 12, 2025 @ 1:07 am. Id of earthquake: us7000qc6i. Event ids that are associated: us7000qc6i.

Nearest cities/city/towns to hypocenter/epicentrum was Shizunai-furukawachō, Mutsu (min 5000 pop). Epicenter of the earthquake was 68 km (42 miles) from Mutsu (c. 49 200 pop), 93 km (58 miles) from Shizunai-furukawachō (c. 22 400 pop). Close country/countries, Japan (c. 127 288 000 pop) (That might be effected).

In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days five and in the last 365 days fourty-five earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year.

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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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 67 km ENE of Mutsu, Japan. This data comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	4.3 mb	The magnitude for the event.
Longitude	141.9449° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	41.5581° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	66.169 km	Depth of the event in kilometers.
Place	67 km ENE of Mutsu, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-07-12 01:07:35	Time when the event occurred. UTC/GMT
Updated	2025-07-12 02:13:34	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	39	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.015	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.71 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	us7000qc6i	Id of event.
Event Code	7000qc6i	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000qc6i,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.3 mag strikes near Mutsu in Japan

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