Light earthquake, 4.5 mag strikes near Kuzumaki in Japan

A light earthquake with magnitude 4.5 (ml/mb) was detected on Friday, 19 kilometers (12 miles) from Kuzumaki in Japan. Global date and time of event UTC/GMT: 21/02/25 / 2025-02-21 04:41:30 / February 21, 2025 @ 4:41 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us7000pf5k. Ids that are associated to the event: us7000pf5k. The earthquake occurred at a depth of 72.188 km (45 miles) below the earth’s surface. The temblor was picked up at 04:41:30 / 4:41 am (local time epicenter). Exact location of earthquake, 141.4957° East, 39.8704° North, depth 72.188 km.

Close country/countries that might be effected, Japan (c. 127 288 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Ōdate, Misawa, Ōfunato. Earthquake epicenter was 35 km (22 miles) from Morioka-shi (c. 295 200 pop), 70 km (43 miles) from Hachinohe (c. 239 000 pop), 73 km (45 miles) from Kitakami (c. 93 900 pop), 63 km (39 miles) from Hanamaki (c. 73 100 pop), 91 km (57 miles) from Ōdate (c. 64 500 pop), 88 km (54 miles) from Mizusawa (c. 61 300 pop), 45 km (28 miles) from Miyako (c. 51 700 pop).

Each year there are an estimated 13,000 light quakes 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 one, in the last 10 days three, in the past 30 days four and in the last 365 days thirty-one earthquakes of magnitude 3.0 or greater that have been detected nearby.

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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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 19 km SSE of Kuzumaki, Japan. This information comes from the USGS Earthquake Notification Service.

More information

Parameter	Value	Description
Magnitude	4.5 mb	The magnitude for the event.
Longitude	141.4957° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	39.8704° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	72.188 km	Depth of the event in kilometers.
Place	19 km SSE of Kuzumaki, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-02-21 04:41:30	Time when the event occurred. UTC/GMT
Updated	2025-02-21 05:54:50	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	312	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	30	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.975	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.44 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	172	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	us7000pf5k	Id of event.
Event Code	7000pf5k	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000pf5k,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

4.5 mb

The magnitude for the event.

Longitude

141.4957° East

Decimal degrees longitude. Negative values for western longitudes.

Latitude

39.8704° North

Decimal degrees latitude. Negative values for southern latitudes.

Depth

72.188 km

Depth of the event in kilometers.

Place

19 km SSE of Kuzumaki, Japan

Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.

Time

2025-02-21 04:41:30

Time when the event occurred. UTC/GMT

Updated

2025-02-21 05:54:50

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

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

312

A number describing how significant the event is. Larger numbers indicate a more significant event.

Network

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

The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.

Horizontal Distance

0.975

Horizontal distance from the epicenter to the nearest station (in degrees).

Root Mean Square

0.44 sec

The root-mean-square (RMS) travel time residual, in sec, using all weights.

Azimuthal Gap

172

The largest azimuthal gap between azimuthally adjacent stations (in degrees).

Magnitude Type

The method or algorithm used to calculate the preferred magnitude for the event.

Event Type

earthquake

Type of seismic event.

Event ID

us7000pf5k

Id of event.

Event Code

7000pf5k

An identifying code assigned by, and unique from, the corresponding source for the event.

Event IDS

,us7000pf5k,

A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.5 mag strikes near Kuzumaki in Japan

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