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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag strikes near Severo-Kuril’sk in Russia

Posted by admin on August 21, 2025 0 Comments

Earthquake location 50.2881S, 159.6747WA light earthquake with magnitude 4 (ml/mb) was detected on Thursday, 255 km E of Severo-Kuril’sk, Russia (158 miles). Exact location, longitude 159.6747° East, latitude 50.2881° North, depth = 10 km. The epicenter was at a depth of 10 km (6 miles). Id of earthquake: us6000r2gy. Event ids that are associated: us6000r2gy. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 31/07/25 / 2025-07-31 18:01:47 / July 31, 2025 @ 6:01 pm. The 4-magnitude earthquake was detected at 18:01:47 / 6:01 pm (local time epicenter).

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

How would you describe the shaking?

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: 255 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 159.6747° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.2881° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 255 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 2025-07-31 18:01:47 Time when the event occurred. UTC/GMT
Updated 2025-08-21 13:46:56 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 25 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.813 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.64 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 134 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 us6000r2gy Id of event.
Event Code 6000r2gy An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000r2gy, A comma-separated list of event ids that are associated to an event.

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