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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag was detected near Adak in Alaska

Posted by admin on September 7, 2020 0 Comments

Earthquake location 51.485S, -178.4092WA light earthquake magnitude 4.3 (ml/mb) has struck on Sunday, 130 km WSW of Adak, Alaska (81 miles). Exact location, longitude -178.4092° West, latitude 51.485° North, depth = 10 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 11:20:01 / 11:20 am (local time epicenter). Unique identifier: us7000bf0i. Ids that are associated to the event: ak020b629e50, us7000bf0i. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. Exact time and date of event in UTC/GMT: 30/08/20 / 2020-08-30 11:20:01 / August 30, 2020 @ 11:20 am.

There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been eight, in the last 10 days ten, in the past 30 days eighteen and in the last 365 days three hundred and ninety-eight earthquakes of magnitude 3.0 or greater that was reported nearby.

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: 130 km WSW of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -178.4092° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.485° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 130 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 2020-08-30 11:20:01 Time when the event occurred. UTC/GMT
Updated 2020-08-30 14:42:35 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 284 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 ,ak,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 0.864 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.62 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 176 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 us7000bf0i Id of event.
Event Code 7000bf0i An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak020b629e50,us7000bf0i, A comma-separated list of event ids that are associated to an event.

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