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

Posted by admin on February 25, 2018 0 Comments

Earthquake location 63.2189S, -150.5612WA light earthquake magnitude 4.1 (ml/mb) has occurred on Sunday, 83 km WSW of Cantwell, Alaska (52 miles). Exact time and date of event in UTC/GMT: 25/02/18 / 2018-02-25 11:32:53 / February 25, 2018 @ 11:32 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude -150.5612° West, latitude 63.2189° North, depth = 121.5 km. The earthquake was roughly at a depth of 121.5 km (75 miles). The temblor was detected at 02:32:53 / 2:32 am (local time epicenter). All ids that are associated to the event: ak18519571, us2000d7na. Unique identifier: ak18519571.

Every year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days five, in the past 30 days seven and in the last 365 days sixty-seven earthquakes of magnitude 3.0 or greater that has occurred nearby.

Questions or comments?

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: 83 km WSW of Cantwell, 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 -150.5612° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 63.2189° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 121.5 km Depth of the event in kilometers.
Place 83km WSW of Cantwell, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-25 11:32:53 Time when the event occurred. UTC/GMT
Updated 2018-02-25 11:45:20 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 automatic 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 ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.53 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 ak18519571 Id of event.
Event Code 18519571 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak18519571,us2000d7na, A comma-separated list of event ids that are associated to an event.

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