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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.3 quake has struck near Tambakrejo in Indonesia


Earthquake location -9.4376S, 111.8268WA light earthquake magnitude 4.3 (ml/mb) has occurred on Friday, 129 km SSW of Tambakrejo, Indonesia (80 miles). The earthquake occurred at a depth of 46.3 km (29 miles) below the earth’s surface. Global date and time of event UTC/GMT: 21/04/17 / 2017-04-21 03:38:51 / April 21, 2017 @ 3:38 am. All ids that are associated to the event: us10008n59. Unique identifier: us10008n59. The temblor was detected at 10:38:51 / 10:38 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude 111.8268 East, latitude -9.4376 South, depth = 46.3 km.

In the past 24 hours, there have been seven, in the last 10 days seven, in the past 30 days nine and in the last 365 days twenty-six earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each 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.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 129 km SSW of Tambakrejo, Indonesia. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 111.8268° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -9.4376° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 46.3 km Depth of the event in kilometers.
Place 129km SSW of Tambakrejo, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-04-21 03:38:51 Time when the event occurred. UTC/GMT
Updated 2017-05-03 23:56:32 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 284 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 1.989 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.65 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 163 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 us10008n59 Id of event.
Event Code 10008n59 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10008n59, A comma-separated list of event ids that are associated to an event.

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