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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag has occurred near Adak in Alaska

Posted by admin on January 24, 2021 0 Comments

Earthquake location 51.4473S, -179.5022WA light earthquake magnitude 4.1 (ml/mb) has occurred on Friday, 204 km WSW of Adak, Alaska (127 miles). Global date and time of event UTC/GMT: 01/01/21 / 2021-01-01 11:55:47 / January 1, 2021 @ 11:55 am. Unique identifier: us6000d7qq. Ids that are associated to the event: us6000d7qq. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -179.5022 West, latitude 51.4473 North, depth = 35 km. The epicenter of the earthquake was roughly 35 km (22 miles) below the earth’s surface. The 4.1-magnitude earthquake has occurred at 11:55:47 / 11:55 am (local time epicenter).

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

Did you feel it?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city 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: 204 km WSW of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -179.5022° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.4473° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 204 km WSW of Adak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-01-01 11:55:47 Time when the event occurred. UTC/GMT
Updated 2021-01-24 14:13:05 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 259 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 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.808 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.66 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 211 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 us6000d7qq Id of event.
Event Code 6000d7qq An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000d7qq, A comma-separated list of event ids that are associated to an event.

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