Seismologists have recorded a magnitude 4.5 earthquake in Africa, with the epicentre located 6 km NW of Āwash, Ethiopia. The event occurred at 12:33 UTC on Wednesday, September 16, 2026 and originated at a depth of 10.0 km.
Seismic Context for Africa
Africa is generally considered a stable continental landmass with lower seismic activity than plate boundary regions. However, the East African Rift System — stretching from the Afar Triangle through Ethiopia, Kenya, Tanzania, and Mozambique — generates significant earthquakes as the continent slowly tears apart.
North Africa, particularly Morocco, Algeria, and the Mediterranean coast, faces moderate to high seismic hazard from the African-Eurasian collision. The 2003 Boumerdès earthquake in Algeria (M6.8, ~2,200 deaths) and the 2023 Al Haouz earthquake in Morocco (M6.8, ~3,000 deaths) demonstrated the region's vulnerability.
About This Event
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.
In terms of felt effects, a magnitude 4.5 earthquake is typically felt strongly by everyone; minor to moderate damage possible in vulnerable buildings. 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.
Understanding the Magnitude Scale
Earthquake magnitude is measured on a logarithmic scale — meaning each whole-number increase corresponds to roughly 32 times more energy released and approximately 10 times greater ground motion amplitude. A magnitude 4.5 event therefore releases significantly more energy than its number alone might suggest to the casual observer.
A magnitude 4.5 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.
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.
What to Do After an Earthquake
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.
Agree on an out-of-area contact that family members can reach if local communications are disrupted. Identify two meeting points: one near your home and one further away. Practise earthquake drills, especially with children and elderly household members.
Staying Informed
National civil protection agencies in affected countries coordinate responses, often with support from international organisations including the UN Office for the Coordination of Humanitarian Affairs (OCHA).
QuakeWatch publishes real-time earthquake data sourced from the USGS global catalog — covering every detected seismic event worldwide, 24 hours a day. Visit our live map to see this and all other recent earthquakes, or explore our guide to earthquake magnitude for a deeper understanding of what these numbers mean in practice.
The Science of Seismic Monitoring
Modern earthquake detection relies on a global network of seismographs — sensitive instruments that record ground motion in all three dimensions. When an earthquake occurs, the P-waves (primary, compressional waves) arrive first, followed by the slower S-waves (secondary, shear waves), and finally the surface waves that cause the most felt shaking. By comparing arrival times at multiple stations, scientists can triangulate the earthquake's location and calculate its magnitude within minutes of the event.
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