A seismic event measuring magnitude 4.6 has been recorded by global monitoring networks, with the epicentre located 23 km SSE of Saimbeyli, Turkey. The earthquake occurred at 11:36 UTC on Sunday, October 4, 2026 and was detected at a focal depth of 10.0 km.
Seismological Overview
Earthquakes are the result of sudden energy release in Earth's crust, most commonly along fault lines where tectonic plates interact. This energy radiates outward as seismic waves — measured and characterised by networks of seismographs operated by agencies including the USGS, JMA, EMSC, and GFZ.
Turkey straddles the Anatolian Plate, which is being squeezed westward between the Eurasian and Arabian plates. The North Anatolian Fault — one of the world's most active strike-slip faults — runs almost the entire length of the country.
Event Parameters in Detail
Magnitude: 4.6 (moment magnitude scale, Mw) — a moderate earthquake.
Depth: 10.0 km
Location: 23 km SSE of Saimbeyli, Turkey
Time: 11:36 UTC on Sunday, October 4, 2026
At a focal depth of 10.0 km, this is classified as a shallow earthquake (0–70 km). Shallow events are typically the most damaging: the seismic energy has less distance to travel before reaching the surface, resulting in stronger and more abrupt ground shaking at the epicentre.
Energy and Ground Motion
A magnitude 4.6 earthquake releases approximately roughly 500 tonnes of TNT of energy. For comparison, this exceeds the energy released by most conventional explosive events and is sufficient to shift tectonic stress in measurable ways across a wide region.
Moderate earthquakes are felt by virtually everyone near the epicentre. Strong shaking lasting 10–30 seconds can topple unsecured items, crack plaster, and cause poorly anchored objects to fall. Aftershocks are common following moderate events.
Significant damage can occur to vulnerable structures — particularly unreinforced masonry, old adobe buildings, and poorly maintained older construction. Well-engineered modern buildings are designed to withstand this level of shaking with minimal structural impact, though contents may shift and non-structural elements (ceilings, partitions) can be damaged.
Regional Seismic History
Turkey has experienced numerous devastating earthquakes, including the 1999 İzmit earthquake (M7.6) and the catastrophic February 2023 Kahramanmaraş sequence (M7.8 and M7.7), which claimed more than 50,000 lives and highlighted ongoing risks across the region.
Public Safety Guidance
For residents in the affected area, the immediate priority is assessing personal safety and structural integrity. The internationally recommended action during earthquake shaking is Drop, Cover, and Hold On: drop to your hands and knees, take cover under a sturdy table or desk (or protect your head with your arms if no shelter is available), and hold on until shaking stops. Do not run outside during shaking — most injuries occur when people attempt to move.
During and after an earthquake, follow instructions from official civil protection, emergency services, and government authorities. Avoid spreading unverified information on social media. Official channels provide the most reliable information about aftershock risk, evacuation orders, and available assistance.
Turkish authorities maintain AFAD (Disaster and Emergency Management Authority) as the central emergency coordination body. Citizens are encouraged to register in the national earthquake awareness programme and keep emergency kits readily accessible.
Continued Monitoring
The USGS and regional seismic networks will continue to monitor this event for aftershock activity. QuakeWatch aggregates this global data in real time — you can view all current seismic activity on our live map, or explore our earthquake science guides to learn more about the forces behind events like this one.
How QuakeWatch Tracks This Event
QuakeWatch sources earthquake data directly from the USGS ComCat (Comprehensive Catalog), which aggregates data contributed by seismic networks worldwide including JMA (Japan), EMSC (Europe and Mediterranean), GFZ (Germany and global), Geoscience Australia, and dozens of national and regional networks. This data is refreshed every 60 seconds, ensuring that new earthquakes appear on our live map within minutes of being processed by the USGS. You can also submit a felt report for this earthquake directly on its detail page.
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