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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.2 mag, 175 km SSE of Vilyuchinsk, Russia


Earthquake location 51.4632S, 159.3405WA light earthquake with magnitude 4.2 (ml/mb) was detected on Wednesday, 175 km SSE of Vilyuchinsk, Russia (109 miles). The earthquake occurred at a depth of 35 km (22 miles). Id of earthquake: us6000r1aw. Event ids that are associated: us6000r1aw. Exact time and date of event in UTC/GMT: 30/07/25 / 2025-07-30 21:07:05 / July 30, 2025 @ 9:07 pm. The temblor was picked up at 21:07:05 / 9:07 pm (local time epicenter). Exact location of event, depth 35 km, 159.3405° East, 51.4632° North. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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

Did you feel anything?

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. 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: 175 km SSE of Vilyuchinsk, Russia.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 159.3405° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.4632° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 175 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 2025-07-30 21:07:05 Time when the event occurred. UTC/GMT
Updated 2025-08-21 00:40:41 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 27 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.619 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.78 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 193 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 us6000r1aw Id of event.
Event Code 6000r1aw An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000r1aw, A comma-separated list of event ids that are associated to an event.

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