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Light earthquake: M4.5 quake has struck near Sambelia in Indonesia


Earthquake location -8.3127S, 116.727WA light earthquake magnitude 4.5 (ml/mb) has occurred on Wednesday, 8 kilometers (5 miles) from Sambelia in Indonesia. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 00:04:10 / 12:04 am (local time epicenter). All ids that are associated to the event: us1000geqs. Unique identifier: us1000geqs. Exact location of event, longitude 116.727 East, latitude -8.3127 South, depth = 10 km. Global date and time of event UTC/GMT: 21/08/18 / 2018-08-21 16:04:10 / August 21, 2018 @ 4:04 pm. The epicenter was at a depth of 10 km (6 miles).

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Sumbawa Besar, Mataram, Praya. Epicenter of the event was 74 km (46 miles) from Mataram (c. 318 700 pop), 79 km (49 miles) from Sumbawa Besar (c. 52 700 pop), 67 km (41 miles) from Praya (c. 35 200 pop). Close country/countries, Indonesia (c. 242 968 000 pop) (That might be effected).

Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been two, in the last 10 days twenty-three, in the past 30 days eighty-seven and in the last 365 days ninety-seven earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

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. 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: 8 km NNE of Sambelia, Indonesia.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 116.727° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -8.3127° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 8km NNE of Sambelia, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-08-21 16:04:10 Time when the event occurred. UTC/GMT
Updated 2018-08-21 17:05:17 Time when the event was most recently updated. UTC/GMT
Timezone offset 480 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 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 2.552 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.71 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 68 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 us1000geqs Id of event.
Event Code 1000geqs An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000geqs, A comma-separated list of event ids that are associated to an event.

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