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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag strikes near Petropavlovsk-Kamchatsky in Russia


Earthquake location 52.5477S, 160.979WA light earthquake with magnitude 4 (ml/mb) was detected on Thursday, 168 km ESE of Petropavlovsk-Kamchatsky, Russia (104 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 31/07/25 / 2025-07-31 09:56:49 / July 31, 2025 @ 9:56 am. Exact location of earthquake, longitude 160.979 East, latitude 52.5477 North, depth = 10 km. Unique identifier: us6000r2et. Ids that are associated to the event: us6000r2et. The earthquake was roughly at a depth of 10 km (6 miles). The 4-magnitude earthquake was detected at 09:56:49 / 9:56 am (local time epicenter).

In the past 24 hours, there have been three hundred and sixty-nine, in the last 10 days six hundred and sixty-four, in the past 30 days eight hundred and sixty-one and in the last 365 days nine hundred and fourty earthquakes of magnitude 3.0 or greater that have been detected nearby. 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.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 168 km ESE of Petropavlovsk-Kamchatsky, Russia.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 160.979° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.5477° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 168 km ESE 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 2025-07-31 09:56:49 Time when the event occurred. UTC/GMT
Updated 2025-08-29 06:50:47 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 22 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.493 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.86 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 121 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 us6000r2et Id of event.
Event Code 6000r2et An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000r2et, A comma-separated list of event ids that are associated to an event.

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