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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.2 quake has struck near Ndoi Island in Fiji

Posted by admin on March 9, 2018 0 Comments

Earthquake location -18.775S, -177.7341WA light earthquake magnitude 4.2 (ml/mb) has occurred on Thursday, 230 km NNE of Ndoi Island, Fiji (143 miles). Global time and date of event 22/02/18 / 2018-02-22 22:16:58 / February 22, 2018 @ 10:16 pm UTC/GMT. Exact location of earthquake, -177.7341° West, -18.775° South, depth 599.6 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us2000db1p. Ids that are associated to the event: us2000db1p. The 4.2-magnitude earthquake was detected at 10:16:58 / 10:16 am (local time epicenter). The epicenter of the earthquake was roughly 599.6 km (373 miles) below the earth’s surface.

In the past 24 hours, there have been four, in the last 10 days five, in the past 30 days eight and in the last 365 days one hundred and nine earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 13,000 light earthquakes in the world each year. 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: 230 km NNE of Ndoi Island, Fiji.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -177.7341° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -18.775° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 599.6 km Depth of the event in kilometers.
Place 230km 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 2018-02-22 22:16:58 Time when the event occurred. UTC/GMT
Updated 2018-03-09 04:12:07 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 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 7.489 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.72 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 143 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 us2000db1p Id of event.
Event Code 2000db1p An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000db1p, A comma-separated list of event ids that are associated to an event.

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