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Light earthquake: M4.8 quake has struck near Adak in Alaska

Posted by admin on October 4, 2020 0 Comments

Earthquake location 51.252S, -179.268WA light earthquake with magnitude 4.8 (ml/mb) was reported 195 km WSW of Adak, Alaska (121 miles) on Sunday. The earthquake occurred at a depth of 42.09 km (26 miles) below the earth’s surface. Exact location, longitude -179.268° West, latitude 51.252° North, depth = 42.09 km. The 4.8-magnitude earthquake was detected at 07:11:45 / 7:11 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global time and date of event 04/10/20 / 2020-10-04 07:11:45 / October 4, 2020 @ 7:11 am UTC/GMT. Event ids that are associated to the earthquake: us6000c5e0. Id of event: us6000c5e0.

There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days ten and in the last 365 days two hundred and ninety-four 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.

Did you feel anything?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 195 km WSW of Adak, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.8 mb The magnitude for the event.
Longitude -179.268° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.252° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 42.09 km Depth of the event in kilometers.
Place 195 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 2020-10-04 07:11:45 Time when the event occurred. UTC/GMT
Updated 2020-10-04 07:35:29 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 354 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 0.907 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 140 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 us6000c5e0 Id of event.
Event Code 6000c5e0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000c5e0, A comma-separated list of event ids that are associated to an event.

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