Reviewed by USGSIndonesia111y ago
M6.5 earthquake 7 km WNW of Ubud, Indonesia
Saturday, January 20, 1917, 23:11:44 UTC · 8.492°S, 115.198°E
A magnitude 6.5 earthquake struck 7 km WNW of Ubud, Indonesia on Saturday, January 20, 1917, 23:11:44 UTC, at a depth of 15.0 km (shallow). No earthquake of this size or larger appears within 300 km in the USGS catalog since 1900.
- 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
97 kilotons of TNT
That is about 6 times the Hiroshima bomb. It released about 204 times the energy of a magnitude 5.0.
Tectonic setting
294 km
from the nearest mapped plate boundary, between the Sunda and Australian 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 no earlier M5.0+ earthquakes within 300 km.
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 8 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 12,989 recorded deaths. The most severe:
- 1815M7.3
Bali
22 Nov 1815 · 55 km away · intensity IX
11,453 deathstsunami
- 1917M6.6
Bali
20 Jan 1917 · 188 km away · intensity IX
1,500 deathsModerate damage ($1–5M)tsunami
- 1857M7.0
Timor Island:: Dilhi, Gera
13 May 1857 · 64 km away
36 deathsModerate damage ($1–5M)tsunami
- 1916M7.3
Java
11 Sep 1916 · 248 km away
Severe damage ($5–24M)
- 1818M8.5
Sumbawa Island: Bima
8 Nov 1818 · 259 km away
Moderate damage ($1–5M)tsunami
- 1843M6.0
Java: Genteng Island
7 Feb 1843 · 195 km away
tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.