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Moderate earthquake, 5.4 mag strikes near Chernabura Island in Alaska

Posted by admin on July 21, 2018 0 Comments

Earthquake location 54.4325S, -160.894WA moderate earthquake with magnitude 5.4 (ml/mb) was detected on Friday, 94 km WSW of Chernabura Island, Alaska (58 miles). A tsunami warning has been issued near Chernabura Island in Alaska (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: at00pc7i5v, ak19929019, us2000gaii. Id of event: us2000gaii. The temblor was reported at 20:58:39 / 8:58 pm (local time epicenter). Global date and time of event UTC/GMT: 21/07/18 / 2018-07-21 07:58:39 / July 21, 2018 @ 7:58 am. The epicenter of the earthquake was roughly 9.9 km (6 miles) below the earth’s surface. Exact location of event, depth 9.9 km, -160.894° West, 54.4325° North.

There are an estimated 1320 moderate earthquakes in the world each year. In the past 24 hours, there have been three, in the last 10 days eleven, in the past 30 days seventeen and in the last 365 days one hundred and five earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures.

Did you feel it?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 94 km WSW of Chernabura Island, Alaska.

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More information

Parameter Value Description
Magnitude 5.4 mb The magnitude for the event.
Longitude -160.894° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.4325° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 9.9 km Depth of the event in kilometers.
Place 94km WSW of Chernabura Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-07-21 07:58:39 Time when the event occurred. UTC/GMT
Updated 2018-07-21 08:20:51 Time when the event was most recently updated. UTC/GMT
Timezone offset -660 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 449 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,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 0.857 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.29 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 66 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 us2000gaii Id of event.
Event Code 2000gaii An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00pc7i5v,ak19929019,us2000gaii, A comma-separated list of event ids that are associated to an event.

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