Location:

Period:

24 Jan 2020 17:55:14 - 30 Jan 2020 01:49:04 (5 days 7 hours 53 minutes)

Volcanoes in 100km radius:

Karaca Dag(98km)

Earthquakes:

5 swarms found nearby.

2007

S20070209.1(14.1km)

9 Feb

2 days 16 hours

53 earthquakes

S20070221.1(9.3km)

21 Feb

5 days 5 hours

124 earthquakes

S20070301.1(5.8km)

28 Feb

3 days 3 hours

44 earthquakes

2020

S20200204.1(4.8km)

3 Feb

3 days 1 hours

38 earthquakes

2023

PS20230206.2(79.5km)

6 Feb

1 day 8 hours

14 earthquakes

AI-generated article — for informational and entertainment purposes only. May contain inaccuracies. Full disclaimerFound an error?

Seismic Swarm S20200125.1 in Eastern Turkey: January 2020 Analysis

Eastern Turkey lies within a tectonically active zone shaped by the ongoing collision between the Arabian and Eurasian plates. This convergence drives deformation along major structures, including the East Anatolian Fault Zone and the Bitlis-Zagros suture. The region experiences frequent shallow crustal earthquakes due to strike-slip and thrust faulting, with historical events underscoring its seismic hazard. Instrumental records since 2000 document three distinct swarms in the area, the earliest occurring in 2007.

Swarm S20200125.1 began at 17:55 on 24 January 2020 and concluded at 01:49 on 30 January 2020, spanning 127 hours and 53 minutes. During this period, 99 earthquakes were recorded across eastern Turkey. Depths predominantly ranged from 2 to 19 km, with the majority clustered between 5 and 10 km, consistent with activity in the brittle upper crust.

The sequence initiated with a magnitude 6.7 event at 10 km depth. Subsequent activity featured numerous events between magnitudes 2.5 and 5.1, including a 5.1 shock on 25 January at 10 km depth. Magnitudes decreased overall after the first day, with later events rarely exceeding 4.0. Depths remained shallow throughout, rarely surpassing 10 km after the initial hours.

Temporal distribution showed intense early activity on 24 January, with multiple magnitude 4+ events within the first six hours. Activity persisted at lower rates through 25–27 January before tapering. The final recorded event was a magnitude 2.8 shock at 6 km depth on 30 January.

This swarm reflects the region's characteristic seismicity, where plate-boundary stresses release through clustered shallow ruptures. Depths indicate rupture within seismogenic layers above the brittle-ductile transition. The pattern aligns with known behavior along the East Anatolian Fault system.

References

SeismoSight internal swarm classification data (S20200125.1)
USGS Earthquake Catalog (tectonic setting of Eastern Turkey)
EMSC Earthquake Catalog (regional seismic history since 2000)