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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.1 mag, 40 km S of Fereydunshahr, Iran


Earthquake location 32.5813S, 50.0506WA light earthquake magnitude 4.1 (ml/mb) strikes 40 kilometers (25 miles) from Fereydunshahr in Iran on Wednesday. Global time and date of event 23/12/15 / 2015-12-23 02:18:51 / December 23, 2015 @ 2:18 am UTC/GMT. Event ids that are associated to the earthquake: us10004b6u. Id of event: us10004b6u. Exact location of event, depth 10 km, 50.0506° East, 32.5813° North. The 4.1-magnitude earthquake was detected at 05:48:51 / 5:48 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface.

Nearby country/countries that might be effected, Iran (c. 76 923 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Shahrekord, Khvānsār, Fārsān (min 5000 pop). Event epicenter was 81 km (51 miles) from Shahrekord (c. 129 200 pop), 60 km (37 miles) from Fārsān (c. 25 100 pop), 75 km (47 miles) from Khvānsār (c. 21 100 pop), 41 km (25 miles) from Fareydūnshahr (c. 11 600 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days four earthquakes of magnitude 3.0 or greater that was reported nearby. Each year there are an estimated 13,000 light earthquakes in the world.

Did you feel anything?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 40 km S of Fereydunshahr, Iran.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 50.0506° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 32.5813° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 40km S of Fereydunshahr, Iran Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-12-23 02:18:51 Time when the event occurred. UTC/GMT
Updated 2016-01-08 01:00:47 Time when the event was most recently updated. UTC/GMT
Timezone offset 210 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 259 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 0.717 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.85 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 69 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 us10004b6u Id of event.
Event Code 10004b6u An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10004b6u, A comma-separated list of event ids that are associated to an event.

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