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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag has occurred near Vilyuchinsk in Russia


Earthquake location 51.2483S, 159.3828WA light earthquake with magnitude 4.1 (ml/mb) was reported 198 km SSE of Vilyuchinsk, Russia (123 miles) on Thursday. The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. Global date and time of event UTC/GMT: 21/08/25 / 2025-08-21 19:11:19 / August 21, 2025 @ 7:11 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude 159.3828 East, latitude 51.2483 North, depth = 10 km. The temblor was picked up at 19:11:19 / 7:11 pm (local time epicenter). Event ids that are associated to the earthquake: us7000qwi7. Id of event: us7000qwi7.

Each year there are an estimated 13,000 light quakes in the world. In the past 24 hours, there have been seventy-four, in the last 10 days one hundred and fourty-five, in the past 30 days nine hundred and fifteen and in the last 365 days nine hundred and fourty-two earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

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: 198 km SSE of Vilyuchinsk, Russia.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 159.3828° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.2483° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 198 km SSE of Vilyuchinsk, Russia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-08-21 19:11:19 Time when the event occurred. UTC/GMT
Updated 2025-09-16 15:45:17 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 259 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 1.834 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.05 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 142 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 us7000qwi7 Id of event.
Event Code 7000qwi7 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qwi7, A comma-separated list of event ids that are associated to an event.

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