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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.1 mag, 184 km S of Severo-Kuril’sk, Russia


Earthquake location 49.0396S, 155.733WA light earthquake with magnitude 4.1 (ml/mb) was detected on Thursday, 184 km S of Severo-Kuril’sk, Russia (114 miles). The earthquake occurred at a depth of 57.976 km (36 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us6000r2ib. Event ids that are associated: us6000r2ib. The 4.1-magnitude earthquake has occurred at 22:21:26 / 10:21 pm (local time epicenter). Exact location of event, depth 57.976 km, 155.733° East, 49.0396° North. Exact time and date of event in UTC/GMT: 31/07/25 / 2025-07-31 22:21:26 / July 31, 2025 @ 10:21 pm.

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

Did you feel the quake?

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: 184 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 155.733° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 49.0396° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 57.976 km Depth of the event in kilometers.
Place 184 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 2025-07-31 22:21:26 Time when the event occurred. UTC/GMT
Updated 2025-08-24 05:18:28 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 23 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 4.258 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.07 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 170 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 us6000r2ib Id of event.
Event Code 6000r2ib An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000r2ib, A comma-separated list of event ids that are associated to an event.

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