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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag was detected near Ndoi Island in Fiji

Posted by admin on September 20, 2015 0 Comments

Earthquake location -19.8473S, -178.2654WA light earthquake with magnitude 4.2 (ml/mb) was reported 99 km NNE of Ndoi Island, Fiji (62 miles) on Friday. The temblor was detected at 09:36:02 / 9:36 am (local time epicenter). Date and time of earthquake in UTC/GMT: 21/08/15 / 2015-08-21 21:36:02 / August 21, 2015 @ 9:36 pm. Exact location of earthquake, longitude -178.2654 West, latitude -19.8473 South, depth = 616.46 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us20003gft. Ids that are associated to the event: us20003gft. The earthquake occurred at a depth of 616.46 km (383 miles) below the earth’s surface.

There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been five, in the last 10 days six, in the past 30 days nine and in the last 365 days seventy-eight earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -178.2654° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -19.8473° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 616.46 km Depth of the event in kilometers.
Place 99km NNE 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 2015-08-21 21:36:02 Time when the event occurred. UTC/GMT
Updated 2015-09-20 02:02:44 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 271 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 4.066 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.59 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 94 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 us20003gft Id of event.
Event Code 20003gft An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003gft, A comma-separated list of event ids that are associated to an event.

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