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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.4 quake has struck near Onagawa Chō in Japan

Posted by admin on October 30, 2025 0 Comments

Earthquake location 37.6266S, 144.1385WA light earthquake with magnitude 4.4 (ml/mb) was detected on Tuesday, 253 km ESE of Onagawa Chō, Japan (157 miles). The temblor was reported at 01:18:42 / 1:18 am (local time epicenter). The earthquake occurred at a depth of 10 km (6 miles). Global time and date of event 07/10/25 / 2025-10-07 01:18:42 / October 7, 2025 @ 1:18 am UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude 144.1385 East, latitude 37.6266 North, depth = 10 km. Event id: us6000rk6e. Ids that are associated to the earthquake: us6000rk6e.

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 eighteen, in the past 30 days twenty-two and in the last 365 days twenty-six earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 13,000 light earthquakes in the world.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking 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: 253 km ESE of Onagawa Chō, 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 144.1385° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.6266° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 253 km ESE of Onagawa Chō, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-10-07 01:18:42 Time when the event occurred. UTC/GMT
Updated 2025-10-30 04:02:19 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 26 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 3.959 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.67 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 135 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 us6000rk6e Id of event.
Event Code 6000rk6e An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rk6e, A comma-separated list of event ids that are associated to an event.

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