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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag strikes near Kodiak in Alaska

Posted by admin on February 20, 2018 0 Comments

Earthquake location 56.1719S, -149.3706WA light earthquake magnitude 4.5 (ml/mb) strikes 257 km SE of Kodiak, Alaska (160 miles) on Thursday. Global time and date of event 15/02/18 / 2018-02-15 18:45:45 / February 15, 2018 @ 6:45 pm UTC/GMT. Unique identifier: us2000d2sf. Ids that are associated to the event: us2000d2sf. The earthquake occurred at a depth of 11.21 km (7 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 08:45:45 / 8:45 am (local time epicenter). Exact location, longitude -149.3706° West, latitude 56.1719° North, depth = 11.21 km.

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

How would you describe the shaking?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 257 km SE of Kodiak, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -149.3706° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.1719° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 11.21 km Depth of the event in kilometers.
Place 257km SE of Kodiak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-15 18:45:45 Time when the event occurred. UTC/GMT
Updated 2018-02-20 23:38:23 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 312 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 2.387 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.83 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 171 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 us2000d2sf Id of event.
Event Code 2000d2sf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000d2sf, A comma-separated list of event ids that are associated to an event.

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