Light earthquake, 4.2 mag strikes near Aktash in Russia

A light earthquake magnitude 4.2 (ml/mb) has occurred on Tuesday, 23 kilometers (14 miles) from Aktash in Russia. Date and time of earthquake in UTC/GMT: 29/07/25 / 2025-07-29 20:32:02 / July 29, 2025 @ 8:32 pm. The temblor was detected at 20:32:02 / 8:32 pm (local time epicenter). Exact location of event, longitude 87.5452 East, latitude 50.1224 North, depth = 17.413 km. Event id: us6000qw4r. Ids that are associated to the earthquake: us6000qw4r. The earthquake occurred at a depth of 17.413 km (11 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Close country/countries that might be effected, Russia (c. 140 702 000 pop). The epicenter was 82 km (51 miles) from Kosh-Agach (c. 5 700 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Kosh-Agach.

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. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days four earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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: 23 km SW of Aktash, Russia. This data comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	87.5452° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	50.1224° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	17.413 km	Depth of the event in kilometers.
Place	23 km SW of Aktash, Russia	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-07-29 20:32:02	Time when the event occurred. UTC/GMT
Updated	2025-08-04 19:09:09	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	22	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	3.198	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.69 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	168	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	us6000qw4r	Id of event.
Event Code	6000qw4r	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000qw4r,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.2 mag strikes near Aktash in Russia

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