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


Earthquake location -8.327S, 119.7472WA light earthquake with magnitude 4.3 (ml/mb) was detected on Saturday, 23 kilometers (14 miles) from Cempa in Indonesia. The earthquake was roughly at a depth of 189.11 km (118 miles). Exact location of event, depth 189.11 km, 119.7472° East, -8.327° South. 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: 21/04/17 / 2017-04-21 22:50:14 / April 21, 2017 @ 10:50 pm. The 4.3-magnitude earthquake was detected at 06:50:14 / 6:50 am (local time epicenter). Event ids that are associated to the earthquake: us10008jp1. Id of event: us10008jp1.

Close country/countries that might be effected, Indonesia (c. 242 968 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Ruteng, Labuhanbajo (min 5000 pop). Epicenter of the earthquake was 24 km (15 miles) from Labuhanbajo (c. 188 700 pop), 86 km (53 miles) from Ruteng (c. 34 600 pop).

Each year there are an estimated 13,000 light quakes in the world. In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days three and in the last 365 days fifteen 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.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 23 km NW of Cempa, Indonesia.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 119.7472° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -8.327° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 189.11 km Depth of the event in kilometers.
Place 23km NW of Cempa, 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 22:50:14 Time when the event occurred. UTC/GMT
Updated 2017-04-21 23:07:22 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 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 2.482 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 68 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 us10008jp1 Id of event.
Event Code 10008jp1 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10008jp1, A comma-separated list of event ids that are associated to an event.

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