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Strong earthquake 6.4 mag, 104 km NNE of Chignik Lake, Alaska



Earthquake location 57.045S, -157.853WA earthquake magnitude 6.4 (ml/mb) strikes 104 km NNE of Chignik Lake, Alaska (65 miles) on Friday. Date and time of earthquake in UTC/GMT: 02/04/16 / 2016-04-02 05:50:04 / April 2, 2016 @ 5:50 am. The epicenter of the earthquake was roughly 93 km (58 miles) below the earth’s surface. Id of earthquake: at00o4zs7g. Event ids that are associated: at00o4zs7g. A tsunami warning has been issued near Chignik Lake in Alaska (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -157.853 West, latitude 57.045 North, depth = 93 km. The 6.4-magnitude earthquake has occurred at 21:50:04 / 9:50 pm (local time epicenter).

Every year there are an estimated 135 earthquakes in the world. Earthquakes 6.0 to 6.9 may cause a lot of damage in very populated areas. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days fifty-two earthquakes of magnitude 3.0 or greater that was reported nearby.

Did you feel the quake?

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 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: 104 km NNE of Chignik Lake, Alaska.

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More information

Parameter Value Description
Magnitude 6.4 mb The magnitude for the event.
Longitude -157.853° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 57.045° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 93 km Depth of the event in kilometers.
Place 104km NNE of Chignik Lake, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-04-02 05:50:04 Time when the event occurred. UTC/GMT
Updated 2016-04-02 06:06:14 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 3 The total number of felt reports
CDI 2.2 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 631 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 51 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.20733574 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.09 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 118.8 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type Mi The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID at00o4zs7g Id of event.
Event Code 00o4zs7g An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00o4zs7g, A comma-separated list of event ids that are associated to an event.

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