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Strong earthquake 6 mag, 34 km N of Tarakan, Indonesia

Earthquake location 3.6137S, 117.6468WA earthquake magnitude 6 (ml/mb) has struck on Monday, 34 kilometers (21 miles) from Tarakan in Indonesia. Exact location of earthquake, longitude 117.6468 East, latitude 3.6137 North, depth = 22.99 km. Unique identifier: us100048hc. Ids that are associated to the event: us100048hc. A tsunami warning has been issued near Tarakan in Indonesia (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 22.99 km (14 miles). The temblor was detected at 02:47:37 / 2:47 am (local time epicenter). Global date and time of event UTC/GMT: 20/12/15 / 2015-12-20 18:47:37 / December 20, 2015 @ 6:47 pm.

Epicenter of the earthquake was 75 km (47 miles) from Tawau (c. 306 500 pop), 34 km (21 miles) from Tarakan (c. 97 500 pop), 49 km (31 miles) from Sembakung (c. 8 100 pop). Closest city/cities/towns to epicentrum/hypocenter was Tawau, Sembakung, Tarakan (min 5000 pop). Close country/countries that might be effected, Indonesia (c. 242 968 000 pop), Malaysia (c. 28 275 000 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days one earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 135 earthquakes in the world. Earthquakes 6.0 to 6.9 may cause a lot of damage in very populated areas.

Questions or comments?

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. 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: 34 km N of Tarakan, Indonesia.

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More information

Parameter Value Description
Magnitude 6 mb The magnitude for the event.
Longitude 117.6468° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 3.6137° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 22.99 km Depth of the event in kilometers.
Place 34km N of Tarakan, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-12-20 18:47:37 Time when the event occurred. UTC/GMT
Updated 2015-12-20 19:20:58 Time when the event was most recently updated. UTC/GMT
Timezone offset 480 Timezone offset from UTC in minutes at the event epicenter.
Felt 8 The total number of felt reports
CDI 3.9 The maximum reported intensity for the event.
MMI 5 The maximum estimated instrumental intensity for the event.
Alert Level green 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 1 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 557 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 1.77 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.88 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 70 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mwp The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us100048hc Id of event.
Event Code 100048hc An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100048hc, A comma-separated list of event ids that are associated to an event.

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