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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag strikes near Amahai in Indonesia


Earthquake location -4.145S, 129.7767WA light earthquake magnitude 4 (ml/mb) has occurred on Sunday, 131 km SE of Amahai, Indonesia (81 miles). Unique identifier: us10004927. Ids that are associated to the event: us10004927. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 20/12/15 / 2015-12-20 12:08:34 / December 20, 2015 @ 12:08 pm. The epicenter of the earthquake was roughly 82.94 km (52 miles) below the earth’s surface. The temblor was detected at 21:08:34 / 9:08 pm (local time epicenter). Exact location of event, longitude 129.7767 East, latitude -4.145 South, depth = 82.94 km.

Every year there are an estimated 13,000 light earthquakes in the world. 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 fourteen, in the past 30 days fourty-nine and in the last 365 days fifty-six earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel anything?

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 131 km SE of Amahai, Indonesia. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 129.7767° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -4.145° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 82.94 km Depth of the event in kilometers.
Place 131km SE of Amahai, 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 12:08:34 Time when the event occurred. UTC/GMT
Updated 2016-01-03 09:24:57 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 246 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 2.751 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.5 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 101 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 us10004927 Id of event.
Event Code 10004927 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10004927, A comma-separated list of event ids that are associated to an event.

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