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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.3 mag, 172 km SE of Vilyuchinsk, Russia


Earthquake location 51.6804S, 159.8877WA light earthquake magnitude 4.3 (ml/mb) has struck on Wednesday, 172 km SE of Vilyuchinsk, Russia (107 miles). The 4.3-magnitude earthquake has occurred at 09:29:20 / 9:29 am (local time epicenter). All ids that are associated to the event: us6000r183. Unique identifier: us6000r183. Exact time and date of event in UTC/GMT: 30/07/25 / 2025-07-30 09:29:20 / July 30, 2025 @ 9:29 am. Exact location of event, longitude 159.8877 East, latitude 51.6804 North, depth = 33.748 km. The epicenter of the earthquake was roughly 33.748 km (21 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Every year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been three hundred and seventy-seven, in the last 10 days five hundred and thirty-seven, in the past 30 days five hundred and fourty-five and in the last 365 days five hundred and sixty-one earthquakes of magnitude 3.0 or greater that was reported nearby.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 172 km SE of Vilyuchinsk, Russia. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 159.8877° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.6804° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 33.748 km Depth of the event in kilometers.
Place 172 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 2025-07-30 09:29:20 Time when the event occurred. UTC/GMT
Updated 2025-08-16 04:16:08 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 39 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.544 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.89 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 91 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 us6000r183 Id of event.
Event Code 6000r183 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000r183, A comma-separated list of event ids that are associated to an event.

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