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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag has occurred near Ozernovskiy in Russia


Earthquake location 50.9922S, 157.1274WA light earthquake with magnitude 4.3 (ml/mb) was reported 71 km SE of Ozernovskiy, Russia (44 miles) on Thursday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.3-magnitude earthquake was detected at 06:03:50 / 6:03 am (local time epicenter). Exact location of event, longitude 157.1274 East, latitude 50.9922 North, depth = 60.58 km. Global time and date of event 31/07/25 / 2025-07-31 06:03:50 / July 31, 2025 @ 6:03 am UTC/GMT. Event id: us6000r2fb. Ids that are associated to the earthquake: us6000r2fb. The earthquake occurred at a depth of 60.58 km (38 miles).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes in the world each year. In the past 24 hours, there have been one hundred and twenty-eight, in the last 10 days one hundred and sixty-seven, in the past 30 days one hundred and sixty-seven and in the last 365 days one hundred and seventy-six earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 71 km SE of Ozernovskiy, Russia. This information 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 157.1274° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.9922° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 60.58 km Depth of the event in kilometers.
Place 71 km SE of Ozernovskiy, 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 06:03:50 Time when the event occurred. UTC/GMT
Updated 2025-08-21 06:34:58 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 38 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.149 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.57 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 134 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 us6000r2fb Id of event.
Event Code 6000r2fb An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000r2fb, A comma-separated list of event ids that are associated to an event.

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