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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag strikes near Chignik in Alaska

Posted by admin on January 17, 2025 0 Comments

Earthquake location 55.1221S, -156.6316WA light earthquake with magnitude 4 (ml/mb) was detected on Friday, 171 km SE of Chignik, Alaska (106 miles). Exact location of earthquake, longitude -156.6316 West, latitude 55.1221 North, depth = 20 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event id: ak025sbi5dp. Ids that are associated to the earthquake: us6000pkm7, ak025sbi5dp. The epicenter was at a depth of 20 km (12 miles). The 4-magnitude earthquake was detected at 12:37:56 / 12:37 pm (local time epicenter). Exact time and date of event in UTC/GMT: 17/01/25 / 2025-01-17 12:37:56 / January 17, 2025 @ 12:37 pm.

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

Questions or comments?

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. 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: 171 km SE of Chignik, Alaska.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -156.6316° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 55.1221° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 20 km Depth of the event in kilometers.
Place 171 km SE of Chignik, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-01-17 12:37:56 Time when the event occurred. UTC/GMT
Updated 2025-01-17 17:40:52 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 ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us,ak, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.49 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID ak025sbi5dp Id of event.
Event Code 025sbi5dp An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000pkm7,ak025sbi5dp, A comma-separated list of event ids that are associated to an event.

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