Reviewed by USGSGreece123y ago
M6.5 earthquake 6 km N of Tríkeri, Greece
Friday, January 20, 1905, 02:32:28 UTC · 39.156°N, 23.085°E
A magnitude 6.5 earthquake struck 6 km N of Tríkeri, Greece on Friday, January 20, 1905, 02:32:28 UTC, at a depth of 15.0 km (shallow). It is the strongest earthquake within 300 km since an M7.0 on April 4, 1904.
- Magnitude
- 6.5
- Strong · mw
- Depth
- 15 km
- Shallow
- Felt reports
- 0
- Did You Feel It?
- Est. shaking
- —
- No ShakeMap
- PAGER alert
- None
- Not issued
- Tsunami
- No flag
- USGS feed
Outlined circle: this earthquake
In context
How big was it, and why here?
Energy released
88 kilotons of TNT
That is about 6 times the Hiroshima bomb. It released about 184 times the energy of a magnitude 5.0.
Tectonic setting
21 km
from the nearest mapped plate boundary, between the Aegean Sea and Eurasian plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
15 km
Shallow earthquakes (under 70 km) produce the strongest surface shaking for their size, so they are the ones most likely to cause damage near the epicenter.
Did You Feel It?
Where it was felt
No “Did You Feel It?” reports have been published for this event yet. If you felt it, you can add your report on the USGS website.
I felt it — report to USGS ↗USGS PAGER estimate
Who was exposed to shaking
USGS publishes PAGER impact estimates for significant earthquakes, usually within an hour. No PAGER estimate is available for this event.
After the main event
Aftershocks within 100 km
USGS has not published any M2.5+ earthquake within 100 km in the 30 days after this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 2 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 92 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 25,985 recorded deaths. The most severe:
- 1883M7.3
Ayvalik, Izmir, Cesme
15 Oct 1883 · 286 km away · intensity X
15,000 deathsExtreme damage ($25M+)
- 1881M7.3
Khios; Turkey: Cesme
3 Apr 1881 · 293 km away · intensity XI
7,866 deathsExtreme damage ($25M+)tsunami
- 1867M7.0
Mitilini; Turkey: Izmir
7 Mar 1867 · 286 km away
563 deathsSevere damage ($5–24M)tsunami
- 1820M6.9
Zakinthos (Zante)
29 Dec 1820 · 224 km away · intensity X
388 deathsSevere damage ($5–24M)tsunami
- 1886M6.8
Triphylie (Peleponese), Philiatra
27 Aug 1886 · 259 km away · intensity X
326 deathsSevere damage ($5–24M)tsunami
- 1767M6.7
Kefalonia
11 Jul 1767 · 248 km away · intensity X
303 deathsSevere damage ($5–24M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.