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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag strikes near Severo-Kuril’sk in Russia

Posted by admin on October 18, 2025 0 Comments

Earthquake location 49.8259S, 155.8697WA light earthquake magnitude 4.3 (ml/mb) has struck on Thursday, 96 km S of Severo-Kuril’sk, Russia (60 miles). The 4.3-magnitude earthquake has occurred at 19:39:33 / 7:39 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 25/09/25 / 2025-09-25 19:39:33 / September 25, 2025 @ 7:39 pm. All ids that are associated to the event: us6000rhu9. Unique identifier: us6000rhu9. The earthquake was roughly at a depth of 78.996 km (49 miles). Exact location of earthquake, longitude 155.8697 East, latitude 49.8259 North, depth = 78.996 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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 ten, in the last 10 days seventeen, in the past 30 days fourty and in the last 365 days two hundred and sixty-four earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel it?

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 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: 96 km S of Severo-Kuril’sk, Russia.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 155.8697° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 49.8259° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 78.996 km Depth of the event in kilometers.
Place 96 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 2025-09-25 19:39:33 Time when the event occurred. UTC/GMT
Updated 2025-10-18 18:37:42 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 40 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 3.48 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.42 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 137 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 us6000rhu9 Id of event.
Event Code 6000rhu9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rhu9, A comma-separated list of event ids that are associated to an event.

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