Reviewed by USGSTurkey108y ago
M6.1 earthquake 25 km ESE of Safranbolu, Turkey
Monday, June 9, 1919, 07:13:52 UTC · 41.170°N, 32.979°E
A magnitude 6.1 earthquake struck 25 km ESE of Safranbolu, Turkey on Monday, June 9, 1919, 07:13:52 UTC, at a depth of 15.0 km (shallow). It is the strongest earthquake within 300 km since an M6.5 on June 25, 1910.
- Magnitude
- 6.1
- 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 earthquakeDashed circle: 100 km aftershock search area
In context
How big was it, and why here?
Energy released
23 kilotons of TNT
That is about 2 times the Hiroshima bomb. It released about 48 times the energy of a magnitude 5.0.
Tectonic setting
24 km
from the nearest mapped plate boundary, between the Anatolian 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 lists 1 M2.5+ earthquake within 100 km in the following 30 days; the largest was M5.9 on June 9, 1919. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 6 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 6.515 km ENE of İskilip, TurkeyJune 25, 1910 · 144 km E of this epicenter
- 5.922 km NNE of Yunak, TurkeyOctober 29, 1909 · 261 km SW of this epicenter
- 5.8TurkeyAugust 29, 1918 · 149 km E of this epicenter
- 5.8TurkeyAugust 9, 1918 · 146 km E of this epicenter
- 5.615 km NE of Taşova, TurkeyMarch 18, 1917 · 292 km E of this epicenter
- 5.4138 km NW of Zonguldak, TurkeyApril 4, 1917 · 229 km NW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 7 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 931 recorded deaths. The most severe:
- 1866M7.2
Goynuk
12 May 1866 · 203 km away · intensity IX
675 deathsSevere damage ($5–24M)
- 1844
Osmancik, Ankara
12 May 1844 · 154 km away · intensity IX
200 deathsSevere damage ($5–24M)
- 1878M6.6
Izmit, Esme, Labinia
19 Apr 1878 · 280 km away · intensity IX
40 deathsModerate damage ($1–5M)tsunami
- 1881M6.1
Turkey
28 Sep 1881 · 82 km away
12 deathsLimited damage (under $1M)
- 1902M5.5
Cankiri
9 Mar 1902 · 74 km away · intensity IX
4 deathsSevere damage ($5–24M)
- 1910M6.1
Hacihamza,Osmancik,Iskilip
25 Jun 1910 · 139 km away · intensity VII
Severe damage ($5–24M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.