Reviewed by USGSTurkey103y ago
M6.1 earthquake 26 km WNW of Yalvaç, Turkey
Thursday, November 20, 1924, 20:27:44 UTC · 38.364°N, 30.892°E
A magnitude 6.1 earthquake struck 26 km WNW of Yalvaç, Turkey on Thursday, November 20, 1924, 20:27:44 UTC, at a depth of 15.0 km (shallow). It is the strongest earthquake within 300 km since an M7.0 on November 18, 1919.
- 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 earthquake
In context
How big was it, and why here?
Energy released
21 kilotons of TNT
That is about the energy of the Hiroshima bomb. It released about 45 times the energy of a magnitude 5.0.
Tectonic setting
238 km
from the nearest mapped plate boundary, between the Aegean Sea and Anatolian plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.
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 13 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.115 km WSW of Burdur, TurkeyOctober 3, 1914 · 103 km SW of this epicenter
- 7.03 km ESE of Soma, TurkeyNovember 18, 1919 · 295 km W of this epicenter
- 6.015 km S of Kulu, TurkeySeptember 26, 1921 · 198 km E of this epicenter
- 6.016 km NNW of Senirkent, TurkeyJanuary 16, 1918 · 38 km W of this epicenter
- 5.922 km NNE of Yunak, TurkeyOctober 29, 1909 · 106 km NE of this epicenter
- 5.8TurkeySeptember 28, 1920 · 288 km W of this epicenter
- 5.826 km WNW of Mut, TurkeyAugust 29, 1922 · 269 km SE of this epicenter
- 5.78 km ESE of Gazipaşa, TurkeySeptember 10, 1924 · 272 km SE of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 23 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 18,637 recorded deaths. The most severe:
- 1719
Turkey
25 May 1719 · 300 km away · intensity X
6,000 deathsExtreme damage ($25M+)
- 1914M7.0
Burdur, Kilinc, Keciborlu, Isparta
3 Oct 1914 · 81 km away · intensity IX
4,000 deathsExtreme damage ($25M+)
- 1855M6.7
Tayabas, Bursa
28 Feb 1855 · 256 km away · intensity X
2,200 deathsSevere damage ($5–24M)
- 1875M7.3
Capali, Dinar, Civril, Yaka
3 May 1875 · 67 km away · intensity X
1,300 deathsExtreme damage ($25M+)
- 1855M6.7
Bursa
29 Apr 1855 · 256 km away
1,300 deathsSevere damage ($5–24M)
- 1899M6.7
Sultanhisar,Atca,Nazilli,Kuyucak,Denizli
20 Sep 1899 · 186 km away · intensity IX
1,117 deathsSevere damage ($5–24M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.