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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag has occurred near Yokohama in Japan


Earthquake location 41.254S, 142.3183WA light earthquake magnitude 4.6 (ml/mb) strikes 91 kilometers (57 miles) from Yokohama in Japan on Friday. The earthquake occurred at a depth of 61.659 km (38 miles). All ids that are associated to the event: us6000rudq. Unique identifier: us6000rudq. Exact location of earthquake, longitude 142.3183 East, latitude 41.254 North, depth = 61.659 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.6-magnitude earthquake was detected at 07:55:44 / 7:55 am (local time epicenter). Date and time of earthquake in UTC/GMT: 12/12/25 / 2025-12-12 07:55:44 / December 12, 2025 @ 7:55 am.

Nearby country/countries, Japan (c. 127 288 000 pop) (That might be effected). Event epicenter was 92 km (57 miles) from Mutsu (c. 49 200 pop). Closest city/cities/towns to epicentrum/hypocenter was Mutsu (min 5000 pop).

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

Did you feel it?

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. 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: 91 km ENE of Yokohama, Japan.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 142.3183° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 41.254° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 61.659 km Depth of the event in kilometers.
Place 91 km ENE of Yokohama, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-12-12 07:55:44 Time when the event occurred. UTC/GMT
Updated 2025-12-12 09:05:11 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 326 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 36 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.987 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.47 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 153 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 us6000rudq Id of event.
Event Code 6000rudq An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rudq, A comma-separated list of event ids that are associated to an event.

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