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Light earthquake: M4.3 quake has struck near Petropavlovsk-Kamchatsky in Russia


Earthquake location 52.2502S, 160.619WA light earthquake magnitude 4.3 (ml/mb) has occurred on Saturday, 162 km SE of Petropavlovsk-Kamchatsky, Russia (101 miles). Date and time of earthquake in UTC/GMT: 20/09/25 / 2025-09-20 20:37:56 / September 20, 2025 @ 8:37 pm. The epicenter of the earthquake was roughly 35 km (22 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us6000rgxa. Event ids that are associated: us6000rgxa. Exact location of earthquake, 160.619° East, 52.2502° North, depth 35 km. The temblor was reported at 20:37:56 / 8:37 pm (local time epicenter).

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

Questions or comments?

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 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: 162 km SE of Petropavlovsk-Kamchatsky, Russia.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 160.619° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.2502° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 162 km SE 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 2025-09-20 20:37:56 Time when the event occurred. UTC/GMT
Updated 2025-10-18 03:48:06 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 18 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.428 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.61 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 199 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 us6000rgxa Id of event.
Event Code 6000rgxa An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rgxa, A comma-separated list of event ids that are associated to an event.

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