Light earthquake, 4 mag was detected near Petropavlovsk-Kamchatsky in Russia

A light earthquake magnitude 4 (ml/mb) has occurred on Thursday, 74 kilometers (46 miles) from Petropavlovsk-Kamchatsky in Russia. The 4-magnitude earthquake was detected at 20:32:54 / 8:32 pm (local time epicenter). Exact location of event, depth 63.922 km, 159.6736° East, 53.2815° North. Global time and date of event 21/08/25 / 2025-08-21 20:32:54 / August 21, 2025 @ 8:32 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter was at a depth of 63.922 km (40 miles). Event id: us7000qwhw. Ids that are associated to the earthquake: us7000qwhw.

Country/countries that might be effected, Russia (c. 140 702 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Yelizovo, Petropavlovsk-Kamchatsky (min 5000 pop). The epicenter was 73 km (45 miles) from Petropavlovsk-Kamchatsky (c. 187 300 pop), 87 km (54 miles) from Yelizovo (c. 40 700 pop).

In the past 24 hours, there have been thirty-one, in the last 10 days sixty, in the past 30 days two hundred and eighty-nine and in the last 365 days five hundred and sixty-seven earthquakes of magnitude 3.0 or greater that have been detected nearby. Each 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.

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: 74 km ENE of Petropavlovsk-Kamchatsky, Russia. This data comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	4 mb	The magnitude for the event.
Longitude	159.6736° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	53.2815° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	63.922 km	Depth of the event in kilometers.
Place	74 km ENE of Petropavlovsk-Kamchatsky, 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 20:32:54	Time when the event occurred. UTC/GMT
Updated	2025-09-16 16:08:34	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	246	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	34	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.669	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.48 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	137	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	us7000qwhw	Id of event.
Event Code	7000qwhw	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000qwhw,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4 mag was detected near Petropavlovsk-Kamchatsky in Russia

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