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Light earthquake: M4 quake has struck near Severo-Kuril’sk in Russia

Posted by admin on August 30, 2025 0 Comments

Earthquake location 50.737S, 157.9449WA light earthquake with magnitude 4 (ml/mb) was detected on Monday, 128 km E of Severo-Kuril’sk, Russia (80 miles). Exact time and date of event in UTC/GMT: 04/08/25 / 2025-08-04 19:33:56 / August 4, 2025 @ 7:33 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 19:33:56 / 7:33 pm (local time epicenter). The earthquake occurred at a depth of 48.699 km (30 miles) below the earth’s surface. Event ids that are associated to the earthquake: us7000qrdg. Id of event: us7000qrdg. Exact location of event, longitude 157.9449 East, latitude 50.737 North, depth = 48.699 km.

Each year there are an estimated 13,000 light quakes in the world. 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 four, in the last 10 days four hundred and ninety-one, in the past 30 days four hundred and ninety-one and in the last 365 days four hundred and ninety-nine earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel anything?

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 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: 128 km E of Severo-Kuril’sk, Russia.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 157.9449° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.737° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 48.699 km Depth of the event in kilometers.
Place 128 km E 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 2025-08-04 19:33:56 Time when the event occurred. UTC/GMT
Updated 2025-08-30 15:33:54 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 246 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 2.331 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.38 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 135 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 us7000qrdg Id of event.
Event Code 7000qrdg An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qrdg, A comma-separated list of event ids that are associated to an event.

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