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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag has occurred near Sūsangerd in Iran


Earthquake location 31.8067S, 48.4667WA light earthquake magnitude 4 (ml/mb) strikes 37 kilometers (23 miles) from Sūsangerd in Iran on Wednesday. The 4-magnitude earthquake has occurred at 00:23:10 / 12:23 am (local time epicenter). Exact location of earthquake, longitude 48.4667 East, latitude 31.8067 North, depth = 10 km. Id of earthquake: us6000rg73. Event ids that are associated: us6000rg73. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter was at a depth of 10 km (6 miles). Global date and time of event UTC/GMT: 17/09/25 / 2025-09-17 00:23:10 / September 17, 2025 @ 12:23 am.

Closest city/cities/towns to epicentrum/hypocenter was Masjed Soleymān, Ahvaz, Shūsh (min 5000 pop). Epicenter of the earthquake was 58 km (36 miles) from Ahvaz (c. 841 100 pop), 80 km (50 miles) from Masjed Soleymān (c. 111 500 pop), 45 km (28 miles) from Shūshtar (c. 77 500 pop), 48 km (30 miles) from Shūsh (c. 52 300 pop), 38 km (24 miles) from Sūsangerd (c. 41 400 pop). Nearby 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 ten earthquakes of magnitude 3.0 or greater that have been detected nearby. 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.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 37 km NE of Sūsangerd, Iran.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 48.4667° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 31.8067° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 37 km NE of Sūsangerd, Iran Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-09-17 00:23:10 Time when the event occurred. UTC/GMT
Updated 2025-10-12 20:48:34 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 246 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 20 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 3.864 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.74 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 225 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 us6000rg73 Id of event.
Event Code 6000rg73 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rg73, A comma-separated list of event ids that are associated to an event.

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