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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag was detected near Vilyuchinsk in Russia


Earthquake location 51.3629S, 160.977WA light earthquake magnitude 4.2 (ml/mb) has struck on Monday, 247 km SE of Vilyuchinsk, Russia (153 miles). Global time and date of event 04/08/25 / 2025-08-04 21:36:55 / August 4, 2025 @ 9:36 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.2-magnitude earthquake has occurred at 21:36:55 / 9:36 pm (local time epicenter). Id of earthquake: us7000qrdt. Event ids that are associated: us7000qrdt. The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. Exact location of event, longitude 160.977 East, latitude 51.3629 North, depth = 10 km.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been one hundred, in the last 10 days four hundred and twenty-one, in the past 30 days five hundred and thirteen and in the last 365 days five hundred and twenty earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel the quake?

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 247 km SE of Vilyuchinsk, Russia.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 160.977° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.3629° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 247 km SE 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 2025-08-04 21:36:55 Time when the event occurred. UTC/GMT
Updated 2025-08-28 00:07:58 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 271 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 35 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.195 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.86 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 177 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 us7000qrdt Id of event.
Event Code 7000qrdt An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qrdt, A comma-separated list of event ids that are associated to an event.

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