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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag was detected near Mamasa in Indonesia


Earthquake location -2.9532S, 119.3729WA light earthquake magnitude 4.5 (ml/mb) has occurred on Friday, 1 kilometers (1 miles) from Mamasa in Indonesia. Exact location of event, depth 10 km, 119.3729° East, -2.9532° South. The 4.5-magnitude earthquake was detected at 01:17:07 / 1:17 am (local time epicenter). Global date and time of event UTC/GMT: 13/12/18 / 2018-12-13 17:17:07 / December 13, 2018 @ 5:17 pm. Event ids that are associated to the earthquake: us2000it8w. Id of event: us2000it8w. The earthquake occurred at a depth of 10 km (6 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

The epicenter was 92 km (57 miles) from Palopo (c. 129 300 pop), 53 km (33 miles) from Polewali (c. 58 200 pop), 58 km (36 miles) from Rantepao (c. 40 400 pop), 79 km (49 miles) from Majene (c. 37 700 pop), 62 km (39 miles) from Mamuju (c. 15 000 pop). Close country/countries that might be effected, Indonesia (c. 242 968 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Palopo, Majene, Mamuju (min 5000 pop).

Every 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 two, in the past 30 days eleven and in the last 365 days thirty-two earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city 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: 1 km SSW of Mamasa, Indonesia.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 119.3729° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -2.9532° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 1km SSW of Mamasa, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-12-13 17:17:07 Time when the event occurred. UTC/GMT
Updated 2018-12-17 23:37:24 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 2.081 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.83 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 83 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 us2000it8w Id of event.
Event Code 2000it8w An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000it8w, A comma-separated list of event ids that are associated to an event.

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