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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.4 mag, 10 km NE of Kuji, Japan


Earthquake location 40.2577S, 141.8514WA light earthquake magnitude 4.4 (ml/mb) has struck on Saturday, 10 kilometers (6 miles) from Kuji in Japan. Exact location of event, depth 46.237 km, 141.8514° East, 40.2577° North. The temblor was picked up at 21:47:23 / 9:47 pm (local time epicenter). Exact time and date of earthquake 20/09/25 / 2025-09-20 21:47:23 / September 20, 2025 @ 9:47 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us6000rgxc. Ids that are associated to the event: us6000rgxc. The earthquake occurred at a depth of 46.237 km (29 miles) below the earth’s surface.

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Hanawa, Yamada, Morioka-shi. The epicenter was 86 km (53 miles) from Morioka-shi (c. 295 200 pop), 40 km (25 miles) from Hachinohe (c. 239 000 pop), 68 km (42 miles) from Miyako (c. 51 700 pop), 62 km (38 miles) from Misawa (c. 42 800 pop), 91 km (56 miles) from Hanawa (c. 36 900 pop), 88 km (55 miles) from Yamada (c. 20 100 pop). Nearby country/countries that might be effected, Japan (c. 127 288 000 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 two, in the last 10 days two, in the past 30 days three and in the last 365 days thirty-nine earthquakes of magnitude 3.0 or greater that have been detected nearby.

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 10 km NE of Kuji, Japan. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 141.8514° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.2577° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 46.237 km Depth of the event in kilometers.
Place 10 km NE of Kuji, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-09-20 21:47:23 Time when the event occurred. UTC/GMT
Updated 2025-10-18 02:38:04 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 27 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.801 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.45 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 147 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 us6000rgxc Id of event.
Event Code 6000rgxc An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rgxc, A comma-separated list of event ids that are associated to an event.

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