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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.6 quake has struck near Lambasa in Fiji

Earthquake location -17.5454S, -178.788WA light earthquake with magnitude 4.6 (ml/mb) was detected on Sunday, 231 km ESE of Lambasa, Fiji (144 miles). The earthquake occurred at a depth of 546.58 km (340 miles) below the earth’s surface. The 4.6-magnitude earthquake was detected at 05:54:26 / 5:54 am (local time epicenter). Date and time of earthquake in UTC/GMT: 30/07/17 / 2017-07-30 17:54:26 / July 30, 2017 @ 5:54 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us2000a458. Ids that are associated to the event: us2000a458. Exact location of event, depth 546.58 km, -178.788° West, -17.5454° South.

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 nine, in the past 30 days fourteen and in the last 365 days one hundred and fifty-eight earthquakes of magnitude 3.0 or greater that was reported nearby.

Did you feel it?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 231 km ESE of Lambasa, Fiji. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -178.788° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -17.5454° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 546.58 km Depth of the event in kilometers.
Place 231km ESE 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 2017-07-30 17:54:26 Time when the event occurred. UTC/GMT
Updated 2017-08-20 14:44:28 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 326 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 3.018 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.94 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 78 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 us2000a458 Id of event.
Event Code 2000a458 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000a458, A comma-separated list of event ids that are associated to an event.

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