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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag has occurred near Lambasa in Fiji



Earthquake location -17.8365S, -178.469WA light earthquake magnitude 4.1 (ml/mb) strikes 277 km SE of Lambasa, Fiji (172 miles) on Saturday. Global date and time of event UTC/GMT: 23/07/17 / 2017-07-23 08:57:54 / July 23, 2017 @ 8:57 am. The earthquake occurred at a depth of 576.58 km (358 miles) below the earth’s surface. Unique identifier: us2000a1sn. Ids that are associated to the event: us2000a1sn. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 576.58 km, -178.469° West, -17.8365° South. The 4.1-magnitude earthquake has occurred at 20:57:54 / 8:57 pm (local time epicenter).

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

Did you feel anything?

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 data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 277 km SE of Lambasa, Fiji.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -178.469° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -17.8365° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 576.58 km Depth of the event in kilometers.
Place 277km SE of Lambasa, Fiji Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-07-23 08:57:54 Time when the event occurred. UTC/GMT
Updated 2017-08-19 13:09:39 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 259 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 3.315 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.6 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 149 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 us2000a1sn Id of event.
Event Code 2000a1sn An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000a1sn, A comma-separated list of event ids that are associated to an event.

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