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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag strikes near Pedro Bay in Alaska

Posted by admin on February 18, 2021 0 Comments

Earthquake location 60.047S, -153.2571WA light earthquake magnitude 4 (ml/mb) has occurred on Thursday, 55 km ENE of Pedro Bay, Alaska (34 miles). Exact location, longitude -153.2571° West, latitude 60.047° North, depth = 116.6 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4-magnitude earthquake was detected at 13:36:13 / 1:36 pm (local time epicenter). Exact time and date of event in UTC/GMT: 18/02/21 / 2021-02-18 13:36:13 / February 18, 2021 @ 1:36 pm. The earthquake occurred at a depth of 116.6 km (72 miles) below the earth’s surface. Id of earthquake: ak021299adt4. Event ids that are associated: ak021299adt4.

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

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: 55 km ENE of Pedro Bay, Alaska.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -153.2571° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 60.047° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 116.6 km Depth of the event in kilometers.
Place 55 km ENE of Pedro Bay, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-02-18 13:36:13 Time when the event occurred. UTC/GMT
Updated 2021-02-18 13:40:45 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 automatic 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 ,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 0.79 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 ak021299adt4 Id of event.
Event Code 021299adt4 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak021299adt4, A comma-separated list of event ids that are associated to an event.

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