M6.5 earthquake 13 km ESE of Itháki, Greece
A magnitude 6.5 earthquake struck 13 km ESE of Itháki, Greece on Tue, Aug 11, 1953, 5:32 AM GMT+2 (03:32 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M6.8 15 km ENE of Póros, Greece. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.5 (mw), strong
- Local time
- UTC
- 1953-08-11 03:32:26 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 38.301° N, 20.846° E
- Region
- Greece
- Strongest shaking
- VII, very strong shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Deaths and damage
From NOAA NCEI’s Significant Earthquake Database (record 4026), matched to this event by time and place.
NOAA’s record of this earthquake gives no deaths, injuries or damage.
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- VII, very strong shaking
- Peak ground acceleration
- 29.5% of gravity
- Peak ground velocity
- 3.1 cm/s
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 3.5 and up: 12 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.424 km NW of Itháki, Greece · 26707 days ago · 15 km deep · 38 km away
- 5.45 km SE of Póros, Greece · 26707 days ago · 15 km deep · 20 km away
- 5.524 km WNW of Itháki, Greece · 26706 days ago · 15 km deep · 38 km away
- 6.815 km ENE of Póros, Greece · 26706 days ago · 10 km deep · 16 km away
- 5.617 km SSE of Póros, Greece · 26706 days ago · 15 km deep · 33 km away
- 6.210 km NE of Katastárion, Greece · 26706 days ago · 15 km deep · 45 km away
- 5.719 km SE of Póros, Greece · 26706 days ago · 15 km deep · 30 km away
- 6.013 km E of Póros, Greece · 26706 days ago · 15 km deep · 20 km away
- 5.519 km SE of Póros, Greece · 26706 days ago · 15 km deep · 29 km away
- 5.45 km ENE of Póros, Greece · 26706 days ago · 15 km deep · 15 km away
- 5.35 km NNE of Zakynthos, Greece · 26702 days ago · 15 km deep · 54 km away
- 5.77 km NNE of Póros, Greece · 26673 days ago · 15 km deep · 10 km away
Before
Earthquakes todayGreece earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem891897. Read Thu, Sep 24, 2026, 3:02 PM UTC.