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Light World Earthquakes Magnitude 4-4.9, Tsunami warning alerts

Light earthquake 4.6 mag, 75 km W of Gustavus, Alaska

Posted by admin on February 18, 2015 0 Comments

Earthquake location 58.282S, -136.998WA light earthquake magnitude 4.6 (mg/mb) has striked on Wednesday, 75 kilometers (47 miles) from Gustavus in Alaska. The temblor was reported at 01:15:07 / 1:15 pm (local time epicenter) at a depth of 12 km (7 miles). Global time of event 2015-02-18 10:15:07 UTC/GMT. A tsunami warning has been issued near Gustavus in Alaska, according to the U.S. Geological Survey. Exact location of event, longitude -136.998 West, latitude 58.282 North, depth 12 km.

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Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded in: 75 km W of Gustavus, Alaska.


More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -136.998° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 58.282° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12 km Depth of the event in kilometers.
Place 75km W of Gustavus, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-02-18 22:15:07 Time when the event occurred. UTC/GMT
Updated 2015-02-18 22:31:11 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 Timezone offset from UTC in minutes at the event epicenter.
Felt 6 The total number of felt reports
CDI 2.4 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 327 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 23 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.16421661 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.67 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 144 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 at00njzn57 Id of event.
Event Code 00njzn57 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00njzn57, A comma-separated list of event ids that are associated to an event.

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