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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag strikes near Lambasa in Fiji

Earthquake location -18.0505S, -178.7085WA light earthquake magnitude 4.5 (ml/mb) strikes 271 km SE of Lambasa, Fiji (168 miles) on Wednesday. The epicenter was at a depth of 607.86 km (378 miles). Exact location of event, longitude -178.7085 West, latitude -18.0505 South, depth = 607.86 km. Global date and time of event UTC/GMT: 30/12/15 / 2015-12-30 12:50:12 / December 30, 2015 @ 12:50 pm. Unique identifier: us10004bu0. Ids that are associated to the event: us10004bu0. The 4.5-magnitude earthquake has occurred at 00:50:12 / 12:50 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes 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 seventeen and in the last 365 days one hundred and eleven earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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 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: 271 km SE of Lambasa, Fiji.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -178.7085° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -18.0505° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 607.86 km Depth of the event in kilometers.
Place 271km 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 2015-12-30 12:50:12 Time when the event occurred. UTC/GMT
Updated 2016-01-29 10:35:49 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 312 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 3.098 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.67 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 192 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 us10004bu0 Id of event.
Event Code 10004bu0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10004bu0, A comma-separated list of event ids that are associated to an event.

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