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Light earthquake: M4.5 quake has struck near Semirom in Iran


Earthquake location 31.3258S, 51.358WA light earthquake magnitude 4.5 (ml/mb) strikes 22 kilometers (14 miles) from Semirom in Iran on Monday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global time and date of event 16/09/19 / 2019-09-16 12:57:00 / September 16, 2019 @ 12:57 pm UTC/GMT. The temblor was detected at 16:27:00 / 4:27 pm (local time epicenter). Event id: us70005h11. Ids that are associated to the earthquake: us70005h11. The earthquake occurred at a depth of 35 km (22 miles). Exact location, longitude 51.358° East, latitude 31.3258° North, depth = 35 km.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Dehdasht, , Yasuj. Event epicenter was 93 km (58 miles) from (c. 100 800 pop), 76 km (47 miles) from Yasuj (c. 96 800 pop), 96 km (60 miles) from Dehdasht (c. 69 700 pop), 71 km (44 miles) from Borūjen (c. 52 700 pop), 22 km (14 miles) from Semīrom (c. 27 200 pop). Country/countries that might be effected, Iran (c. 76 923 000 pop).

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

How would you describe the shaking?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 22 km WSW of Semirom, Iran.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 51.358° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 31.3258° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 22km WSW of Semirom, Iran Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-09-16 12:57:00 Time when the event occurred. UTC/GMT
Updated 2019-09-17 05:20:01 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 312 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 3.615 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.06 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 139 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 us70005h11 Id of event.
Event Code 70005h11 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70005h11, A comma-separated list of event ids that are associated to an event.

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