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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag was detected near Kushiro in Japan


Earthquake location 42.2906S, 144.5311WA light earthquake with magnitude 4.3 (ml/mb) was reported 77 kilometers (48 miles) from Kushiro in Japan on Tuesday. All ids that are associated to the event: us7000qu6b. Unique identifier: us7000qu6b. Exact location of earthquake, 144.5311° East, 42.2906° North, depth 40.468 km. Global date and time of event UTC/GMT: 12/08/25 / 2025-08-12 13:08:38 / August 12, 2025 @ 1:08 pm. The temblor was reported at 13:08:38 / 1:08 pm (local time epicenter). The earthquake occurred at a depth of 40.468 km (25 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Nearest cities/city/towns to hypocenter/epicentrum was Kushiro (min 5000 pop). Earthquake epicenter was 77 km (48 miles) from Kushiro (c. 183 600 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. There are an estimated 13,000 light quakes in the world each year. In the past 24 hours, there have been three, in the last 10 days four, in the past 30 days six and in the last 365 days fifty earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 77 km S of Kushiro, Japan.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 144.5311° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 42.2906° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 40.468 km Depth of the event in kilometers.
Place 77 km S of Kushiro, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-08-12 13:08:38 Time when the event occurred. UTC/GMT
Updated 2025-09-05 18:10:18 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 284 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 58 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.312 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.54 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 170 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 us7000qu6b Id of event.
Event Code 7000qu6b An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qu6b, A comma-separated list of event ids that are associated to an event.

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