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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag strikes near Severo-Kuril’sk in Russia

Posted by admin on October 19, 2025 0 Comments

Earthquake location 49.8301S, 155.9703WA light earthquake magnitude 4.1 (ml/mb) has occurred on Sunday, 94 km S of Severo-Kuril’sk, Russia (58 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.1-magnitude earthquake was detected at 10:17:05 / 10:17 am (local time epicenter). Global date and time of event UTC/GMT: 21/09/25 / 2025-09-21 10:17:05 / September 21, 2025 @ 10:17 am. The epicenter of the earthquake was roughly 54.332 km (34 miles) below the earth’s surface. Event ids that are associated to the earthquake: us6000rh3h. Id of event: us6000rh3h. Exact location of event, depth 54.332 km, 155.9703° East, 49.8301° North.

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

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 94 km S of Severo-Kuril’sk, Russia.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 155.9703° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 49.8301° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 54.332 km Depth of the event in kilometers.
Place 94 km S 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 2025-09-21 10:17:05 Time when the event occurred. UTC/GMT
Updated 2025-10-19 12:03:06 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 259 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 54 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 3.456 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.48 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 233 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 us6000rh3h Id of event.
Event Code 6000rh3h An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rh3h, A comma-separated list of event ids that are associated to an event.

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