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Moderate earthquake, 5.3 mag was detected near Attu Station in Alaska


Earthquake location 53.1943S, 170.5646WA moderate earthquake magnitude 5.3 (ml/mb) has struck on Wednesday, 180 km WNW of Attu Station, Alaska (112 miles). The earthquake was roughly at a depth of 24.83 km (15 miles). Id of earthquake: us7000cpea. Event ids that are associated: at00ql286j, us7000cpea. Exact location of earthquake, 170.5646° East, 53.1943° North, depth 24.83 km. A tsunami warning has been issued near Attu Station in Alaska (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 09/12/20 / 2020-12-09 06:47:07 / December 9, 2020 @ 6:47 am. The 5.3-magnitude earthquake was detected at 06:47:07 / 6:47 am (local time epicenter).

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days three and in the last 365 days thirteen earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. Each year there are an estimated 1320 moderate earthquakes in the world.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 180 km WNW of Attu Station, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 5.3 mb The magnitude for the event.
Longitude 170.5646° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.1943° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 24.83 km Depth of the event in kilometers.
Place 180 km WNW of Attu Station, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-12-09 06:47:07 Time when the event occurred. UTC/GMT
Updated 2020-12-09 07:02:20 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 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 432 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 ,at,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 2.19 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.76 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 75 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mww The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000cpea Id of event.
Event Code 7000cpea An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00ql286j,us7000cpea, A comma-separated list of event ids that are associated to an event.

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