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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag was detected near Sigave in Wallis and Futuna

Posted by admin on March 7, 2018 0 Comments

Earthquake location -15.8612S, -176.3942WA light earthquake with magnitude 4 (ml/mb) was detected on Sunday, 257 km SE of Sigave, Wallis and Futuna (160 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 25/02/18 / 2018-02-25 16:17:50 / February 25, 2018 @ 4:17 pm. The temblor was picked up at 04:17:50 / 4:17 am (local time epicenter). The epicenter of the earthquake was roughly 356.96 km (222 miles) below the earth’s surface. Exact location of event, depth 356.96 km, -176.3942° West, -15.8612° South. All ids that are associated to the event: us2000dcwx. Unique identifier: us2000dcwx.

In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days three and in the last 365 days eighteen earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 13,000 light quakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Questions or comments?

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: 257 km SE of Sigave, Wallis and Futuna.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -176.3942° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -15.8612° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 356.96 km Depth of the event in kilometers.
Place 257km SE of Sigave, Wallis and Futuna 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 16:17:50 Time when the event occurred. UTC/GMT
Updated 2018-03-07 17:56:52 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 246 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 4.867 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.38 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 113 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 us2000dcwx Id of event.
Event Code 2000dcwx An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000dcwx, A comma-separated list of event ids that are associated to an event.

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