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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag strikes near Ndoi Island in Fiji


Earthquake location -21.3488S, -178.3934WA light earthquake with magnitude 4 (ml/mb) was reported 83 km SSE of Ndoi Island, Fiji (52 miles) on Monday. The temblor was detected at 12:52:18 / 12:52 pm (local time epicenter). The earthquake occurred at a depth of 472.64 km (294 miles) below the earth’s surface. Exact time and date of earthquake 13/10/15 / 2015-10-13 00:52:18 / October 13, 2015 @ 12:52 am UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us10003q7b. Event ids that are associated: us10003q7b. Exact location of earthquake, longitude -178.3934 West, latitude -21.3488 South, depth = 472.64 km.

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 two, in the past 30 days six and in the last 365 days seventy-two earthquakes of magnitude 3.0 or greater that have been detected nearby.

Questions or comments?

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: 83 km SSE of Ndoi Island, Fiji. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -178.3934° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -21.3488° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 472.64 km Depth of the event in kilometers.
Place 83km SSE of Ndoi Island, Fiji Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-10-13 00:52:18 Time when the event occurred. UTC/GMT
Updated 2015-10-31 23:53:01 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 4.907 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.49 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 119 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 us10003q7b Id of event.
Event Code 10003q7b An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003q7b, A comma-separated list of event ids that are associated to an event.

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