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Light earthquake: M4.1 quake has struck near Atka in Alaska

Posted by admin on August 14, 2018 0 Comments

Earthquake location 52.0936S, -174.1522WA light earthquake magnitude 4.1 (ml/mb) has struck on Tuesday, 11 km SSE of Atka, Alaska (7 miles). Date and time of earthquake in UTC/GMT: 14/08/18 / 2018-08-14 21:00:29 / August 14, 2018 @ 9:00 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.1-magnitude earthquake has occurred at 11:00:29 / 11:00 am (local time epicenter). Event ids that are associated to the earthquake: us1000g983. Id of event: us1000g983. Exact location, longitude -174.1522° West, latitude 52.0936° North, depth = 43.71 km. The epicenter of the earthquake was roughly 43.71 km (27 miles) below the earth’s surface.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. 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 three, in the past 30 days eight and in the last 365 days one hundred and fifty-one earthquakes of magnitude 3.0 or greater that has occurred nearby.

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 11 km SSE of Atka, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -174.1522° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.0936° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 43.71 km Depth of the event in kilometers.
Place 11km SSE of Atka, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-08-14 21:00:29 Time when the event occurred. UTC/GMT
Updated 2018-08-14 21:19:39 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 1.177 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.93 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 177 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 us1000g983 Id of event.
Event Code 1000g983 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000g983, A comma-separated list of event ids that are associated to an event.

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