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


Earthquake location -8.9972S, 108.4397WA light earthquake with magnitude 4.5 (ml/mb) was detected on Sunday, 130 km S of Citotok, Indonesia (81 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude 108.4397° East, latitude -8.9972° South, depth = 36.69 km. The earthquake occurred at a depth of 36.69 km (23 miles). Id of earthquake: us1000i5bd. Event ids that are associated: us1000i5bd. The 4.5-magnitude earthquake was detected at 19:23:43 / 7:23 pm (local time epicenter). Global time and date of event 09/12/18 / 2018-12-09 12:23:43 / December 9, 2018 @ 12:23 pm UTC/GMT.

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days two and in the last 365 days five earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year.

Did you feel the quake?

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. 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: 130 km S of Citotok, Indonesia.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 108.4397° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -8.9972° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 36.69 km Depth of the event in kilometers.
Place 130km S of Citotok, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-12-09 12:23:43 Time when the event occurred. UTC/GMT
Updated 2018-12-09 12:42:23 Time when the event was most recently updated. UTC/GMT
Timezone offset 420 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 2.325 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.68 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 102 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 us1000i5bd Id of event.
Event Code 1000i5bd An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000i5bd, A comma-separated list of event ids that are associated to an event.

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