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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.4 mag strikes near Severo-Kuril’sk in Russia


Earthquake location 50.3543S, 157.0791WA light earthquake with magnitude 4.4 (ml/mb) was reported 76 km ESE of Severo-Kuril’sk, Russia (47 miles) on Friday. The epicenter was at a depth of 38.984 km (24 miles). Exact location of event, longitude 157.0791 East, latitude 50.3543 North, depth = 38.984 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.4-magnitude earthquake has occurred at 17:48:47 / 5:48 pm (local time epicenter). Unique identifier: us6000r345. Ids that are associated to the event: us6000r345. Global time and date of event 01/08/25 / 2025-08-01 17:48:47 / August 1, 2025 @ 5:48 pm UTC/GMT.

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

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 76 km ESE of Severo-Kuril’sk, Russia.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 157.0791° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.3543° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 38.984 km Depth of the event in kilometers.
Place 76 km ESE of Severo-Kuril’sk, Russia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-08-01 17:48:47 Time when the event occurred. UTC/GMT
Updated 2025-08-22 21:47:45 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 298 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 102 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.785 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.62 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 163 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 us6000r345 Id of event.
Event Code 6000r345 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000r345, A comma-separated list of event ids that are associated to an event.

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