Earthquakes in Athens
Athens is the capital of Greece, the most seismically active country in Europe. The city of 3.7 million people sits in the tectonically complex area where the African and Eurasian plates interact through the Hellenic subduction zone. The 1999 Athens earthquake killed 143 people and caused $3 billion in damage.
Why Does Athens Face Earthquake Risk?
Greece sits above the Hellenic Arc, one of the world's most productive subduction zones where the African oceanic plate dives beneath the Eurasian plate. The Attica region is also crossed by local normal faults, including the Parnitha Fault system that caused the 1999 earthquake. Greece experiences more earthquakes than any other European country.
Active Fault Systems
- Hellenic Subduction Zone
- Parnitha Fault
- Attica Faults
Safety Advice
OASP (Greek Earthquake Planning and Protection Organization) provides building risk assessments and hazard maps. Many older buildings in Athens from the 1950s-1970s do not meet current seismic standards. Know your building's construction date and whether it has been retrofitted.
Historical Earthquake Context
Athens has been affected by earthquakes throughout antiquity. The 1894 Atalanti earthquake (M6.8) caused significant damage in Attica, and the 1999 Athens earthquake demonstrated that previously unmapped faults beneath the capital represent real hazards.
Significant Earthquakes Near Athens
| Year | Magnitude | Event | Deaths |
|---|---|---|---|
| 1999 | M6.0 | Greece | 143 |
Fault Maps & Tectonic Setting
Tectonic and seismic hazard maps from Wikimedia Commons, USGS, and NASA — open licenses (CC / Public Domain)
Maps sourced from Wikimedia Commons, USGS, and NASA under open licenses. Attribution required where specified. Click any map to enlarge.
FAQ
Frequently Asked Questions
What was the 1999 Athens earthquake?
On September 7, 1999, an M6.0 earthquake struck 18 km northwest of Athens near Parnitha Mountain, killing 143 people and injuring over 2,000. The earthquake occurred on a previously unknown fault and collapsed several multi-story buildings in the Ano Liossia, Menidi, and Adames neighborhoods.
How seismically active is Athens?
Athens and the Attica region experience hundreds of small earthquakes per year. Greece is the most seismically active country in Europe, generating roughly 50% of European earthquake energy. A significant earthquake (M5.5+) capable of causing damage occurs near Athens every few years.
Is Athens prepared for a major earthquake?
Greece has invested in seismic building codes following the 1981 and 1999 Athens earthquakes. Buildings constructed after 1985 generally meet modern standards. Athens's OASP (Earthquake Planning and Protection Organization) monitors seismic risk and coordinates preparedness. Pre-1985 buildings in central Athens remain potentially vulnerable.
What should I do during an earthquake in Athens?
Drop, Cover, and Hold On. Greece's national emergency number is 112. After shaking, exit buildings carefully. If in coastal areas and shaking was very strong, consult the Hellenic National Tsunami Warning Centre (HL-NTWC) guidance. Download the 112 Greece app for official emergency alerts.
Where can I see live earthquake data for Athens?
Track earthquakes near Athens on the Earthquake Globe app or at earthquakes.site/map?country=greece. The Geodynamic Institute of Athens (gein.noa.gr) and the University of Athens Seismological Laboratory (seismology.geology.uoa.gr) provide real-time Greek earthquake data.
Explore More
Get Earthquake Alerts for Athens
Earthquake Globe sends real-time push notifications filtered by magnitude and location. Free on the App Store.
iOS 16+ · iPhone & iPad · No subscription required