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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.4 mag was detected near Koshima in Japan

Posted by admin on September 14, 2025 0 Comments

Earthquake location 29.2462S, 130.5218WA light earthquake magnitude 4.4 (ml/mb) has occurred on Sunday, 109 km S of Koshima, Japan (68 miles). All ids that are associated to the event: us7000qvfy. Unique identifier: us7000qvfy. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.4-magnitude earthquake has occurred at 14:27:09 / 2:27 pm (local time epicenter). Global date and time of event UTC/GMT: 17/08/25 / 2025-08-17 14:27:09 / August 17, 2025 @ 2:27 pm. Exact location of event, longitude 130.5218 East, latitude 29.2462 North, depth = 35 km. The epicenter of the earthquake was roughly 35 km (22 miles) below the earth’s surface.

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. In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days four and in the last 365 days one hundred and fourty-four earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel the quake?

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. 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: 109 km S of Koshima, Japan.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 130.5218° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 29.2462° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 109 km S of Koshima, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-08-17 14:27:09 Time when the event occurred. UTC/GMT
Updated 2025-09-14 20:18:10 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 22 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.256 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.87 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 83 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 us7000qvfy Id of event.
Event Code 7000qvfy An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qvfy, A comma-separated list of event ids that are associated to an event.

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