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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.3 quake has struck near Shushtar in Iran


Earthquake location 31.8455S, 48.5581WA light earthquake with magnitude 4.3 (ml/mb) was detected on Saturday, 35 kilometers (22 miles) from Shushtar in Iran. Exact location of event, depth 10 km, 48.5581° East, 31.8455° North. Date and time of earthquake in UTC/GMT: 30/12/17 / 2017-12-30 07:33:45 / December 30, 2017 @ 7:33 am. The temblor was detected at 11:03:45 / 11:03 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us2000cizr. Unique identifier: us2000cizr. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface.

Nearest cities/city/towns to hypocenter/epicentrum was Masjed Soleymān, Ahvaz, Shūsh (min 5000 pop). Event epicenter was 60 km (37 miles) from Ahvaz (c. 841 100 pop), 71 km (44 miles) from Masjed Soleymān (c. 111 500 pop), 36 km (22 miles) from Shūshtar (c. 77 500 pop), 49 km (30 miles) from Shūsh (c. 52 300 pop), 48 km (30 miles) from Sūsangerd (c. 41 400 pop). Country/countries that might be effected, Iran (c. 76 923 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been three, in the last 10 days four, in the past 30 days five and in the last 365 days thirteen earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 13,000 light quakes in the world.

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 35 km SW of Shushtar, Iran. This data 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 48.5581° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 31.8455° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 35km SW of Shushtar, Iran Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-12-30 07:33:45 Time when the event occurred. UTC/GMT
Updated 2018-01-21 12:49:48 Time when the event was most recently updated. UTC/GMT
Timezone offset 210 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 4.033 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.93 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 164 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 us2000cizr Id of event.
Event Code 2000cizr An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000cizr, A comma-separated list of event ids that are associated to an event.

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