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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.5 mag, 146 km S of False Pass, Alaska

Posted by admin on August 11, 2025 0 Comments

Earthquake location 53.544S, -163.5864WA light earthquake with magnitude 4.5 (ml/mb) was detected on Monday, 146 km S of False Pass, Alaska (91 miles). Date and time of earthquake in UTC/GMT: 11/08/25 / 2025-08-11 05:52:03 / August 11, 2025 @ 5:52 am. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. Id of earthquake: us6000qzra. Event ids that are associated: us6000qzra. Exact location of event, longitude -163.5864 West, latitude 53.544 North, depth = 10 km. The 4.5-magnitude earthquake has occurred at 05:52:03 / 5:52 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 146 km S of False Pass, Alaska.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -163.5864° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.544° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 146 km S of False Pass, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-08-11 05:52:03 Time when the event occurred. UTC/GMT
Updated 2025-08-11 06:12:17 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 103 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.163 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.97 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 95 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 us6000qzra Id of event.
Event Code 6000qzra An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000qzra, A comma-separated list of event ids that are associated to an event.

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