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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag was detected near Ndoi Island in Fiji

Posted by admin on August 2, 2017 0 Comments

Earthquake location -20.5994S, -177.7186WA light earthquake with magnitude 4 (ml/mb) was reported 102 km E of Ndoi Island, Fiji (63 miles) on Tuesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -177.7186 West, latitude -20.5994 South, depth = 544.77 km. Event ids that are associated to the earthquake: us20009z86. Id of event: us20009z86. The earthquake occurred at a depth of 544.77 km (339 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 18/07/17 / 2017-07-18 16:51:38 / July 18, 2017 @ 4:51 pm. The 4-magnitude earthquake was detected at 04:51:38 / 4:51 am (local time epicenter).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been seven, in the last 10 days nine, in the past 30 days seventeen and in the last 365 days one hundred and fifty-two earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 13,000 light quakes in the world each year.

Did you feel the quake?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 102 km E of Ndoi Island, Fiji.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -177.7186° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -20.5994° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 544.77 km Depth of the event in kilometers.
Place 102km E 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 2017-07-18 16:51:38 Time when the event occurred. UTC/GMT
Updated 2017-08-02 15:28:32 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 4.902 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.52 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 100 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 us20009z86 Id of event.
Event Code 20009z86 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20009z86, A comma-separated list of event ids that are associated to an event.

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