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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag has occurred near Petropavlovsk-Kamchatsky in Russia

Posted by admin on October 17, 2025 0 Comments

Earthquake location 53.0029S, 161.1671WA light earthquake with magnitude 4.5 (ml/mb) was detected on Sunday, 170 km E of Petropavlovsk-Kamchatsky, Russia (106 miles). The temblor was reported at 01:21:22 / 1:21 am (local time epicenter). 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: 21/09/25 / 2025-09-21 01:21:22 / September 21, 2025 @ 1:21 am. Exact location, longitude 161.1671° East, latitude 53.0029° North, depth = 35 km. Event ids that are associated to the earthquake: us6000rh2q. Id of event: us6000rh2q. The earthquake was roughly at a depth of 35 km (22 miles).

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 seventy-eight, in the last 10 days two hundred and fifty, in the past 30 days three hundred and eight and in the last 365 days one thousand, one hundred and thirteen earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 170 km E of Petropavlovsk-Kamchatsky, Russia.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 161.1671° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.0029° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 170 km E of Petropavlovsk-Kamchatsky, 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 01:21:22 Time when the event occurred. UTC/GMT
Updated 2025-10-17 23:33:58 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 312 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 1.521 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.04 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 201 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 us6000rh2q Id of event.
Event Code 6000rh2q An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rh2q, A comma-separated list of event ids that are associated to an event.

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