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Light earthquake 4.8 mag, 64 km SW of Kaktovik, Alaska

Posted by admin on August 12, 2018 0 Comments

Earthquake location 69.724S, -144.831WA light earthquake with magnitude 4.8 (ml/mb) was detected on Sunday, 64 km SW of Kaktovik, Alaska (40 miles). Exact location of event, depth 20 km, -144.831° West, 69.724° North. Event id: at00pdct74. Ids that are associated to the earthquake: at00pdct74. The earthquake occurred at a depth of 20 km (12 miles) below the earth’s surface. The 4.8-magnitude earthquake has occurred at 06:18:40 / 6:18 am (local time epicenter). Date and time of earthquake in UTC/GMT: 12/08/18 / 2018-08-12 15:18:40 / August 12, 2018 @ 3:18 pm. A tsunami warning has been issued near Kaktovik in Alaska (Does not indicate if a tsunami actually did or will exist).

There are an estimated 13,000 light earthquakes 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 four, in the last 10 days four, in the past 30 days four and in the last 365 days eight earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel the quake?

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 64 km SW of Kaktovik, Alaska.

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More information

Parameter Value Description
Magnitude 4.8 mb The magnitude for the event.
Longitude -144.831° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 69.724° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 20 km Depth of the event in kilometers.
Place 64km SW of Kaktovik, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-08-12 15:18:40 Time when the event occurred. UTC/GMT
Updated 2018-08-12 15:22:44 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 1 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 at The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at, A comma-separated list of network contributors.
Number of Stations Used 26 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.011328 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.8 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 122.399990208 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 at00pdct74 Id of event.
Event Code 00pdct74 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00pdct74, A comma-separated list of event ids that are associated to an event.

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