M3.4 earthquake 2 km SE of Kastélla, Greece
A magnitude 3.4 earthquake struck 2 km SE of Kastélla, Greece on Tue, Oct 20, 1987, 1:32 PM GMT+2 (11:32 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M3.6 7 km NNW of Magoúla, Greece. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.4 (ml), minor
- Local time
- UTC
- 1987-10-20 11:32:37 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 38.551° N, 23.652° E
- Region
- Greece
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 6 in the 30 days before it.
After
- 2.917 km N of Mantoúdi, Greece · 14200 days ago · 10 km deep · 48 km away
- 3.67 km NNW of Magoúla, Greece · 14199 days ago · 10 km deep · 15 km away
- 3.32 km W of Néa Artáki, Greece · 14191 days ago · 10 km deep · 5 km away
- 3.415 km S of Skiáthos, Greece · 14182 days ago · 13 km deep · 55 km away
- 3.54 km SW of Politiká, Greece · 14175 days ago · 5 km deep · 13 km away
- 2.91 km ENE of Prokópi, Greece · 14174 days ago · 10 km deep · 25 km away
- 2.515 km NE of Istiaía, Greece · 14169 days ago · 10 km deep · 65 km away
- 3.017 km SSW of Skiáthos, Greece · 14166 days ago · 10 km deep · 54 km away
Before
- 2.95 km NNE of Límni, Greece · 14225 days ago · 10 km deep · 39 km away
- 2.93 km N of Límni, Greece · 14225 days ago · 22 km deep · 40 km away
- 3.215 km SSW of Skópelos, Greece · 14238 days ago · 8 km deep · 49 km away
- 2.93 km SSW of Istiaía, Greece · 14245 days ago · 32 km deep · 62 km away
- 3.19 km SSW of Áno Lekhónia, Greece · 14247 days ago · 10 km deep · 95 km away
- 3.56 km SW of Ágioi Theódoroi, Greece · 14253 days ago · 10 km deep · 89 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00039eb. Read Wed, Sep 30, 2026, 2:40 AM UTC.