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

Posted by admin on April 19, 2018 0 Comments

Earthquake location 50.9977S, -178.3673WA light earthquake with magnitude 4.1 (ml/mb) was reported 59 km ESE of Amatignak Island, Alaska (37 miles) on Wednesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event id: us1000dnh4. Ids that are associated to the earthquake: us1000dnh4. Date and time of earthquake in UTC/GMT: 19/04/18 / 2018-04-19 07:04:35 / April 19, 2018 @ 7:04 am. The epicenter of the earthquake was roughly 35 km (22 miles) below the earth’s surface. Exact location of earthquake, longitude -178.3673 West, latitude 50.9977 North, depth = 35 km. The 4.1-magnitude earthquake was detected at 19:04:35 / 7:04 pm (local time epicenter).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days seven and in the last 365 days seven hundred and fifty-nine earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 13,000 light earthquakes in the world.

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage 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: 59 km ESE of Amatignak Island, 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 -178.3673° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.9977° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 59km ESE of Amatignak 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 2018-04-19 07:04:35 Time when the event occurred. UTC/GMT
Updated 2018-04-19 07:22:50 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 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 1.516 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.89 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 206 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 us1000dnh4 Id of event.
Event Code 1000dnh4 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000dnh4, A comma-separated list of event ids that are associated to an event.

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