Reviewed by USGSIndonesia31y ago
M4.7 earthquake 86 km W of Sungai Penuh, Indonesia
Sunday, October 22, 1995, 03:58:33 UTC · 2.035°S, 100.618°E
A magnitude 4.7 earthquake struck 86 km W of Sungai Penuh, Indonesia on Sunday, October 22, 1995, 03:58:33 UTC, at a depth of 91.7 km (intermediate). It is the strongest earthquake within 300 km since an M5.3 on October 6, 1995.
- Magnitude
- 4.7
- Light · mb
- Depth
- 92 km
- Intermediate
- 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
169 tons of TNT
That is about 1/89 of the Hiroshima bomb. A magnitude 5.0 releases about 3 times more energy.
Tectonic setting
38 km
from the nearest mapped plate boundary, between the North Andes and South American plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: intermediate
92 km
Intermediate-depth earthquakes usually break inside a plate that is sinking into the mantle. Shaking spreads over a wide area but is gentler at the epicenter than a shallow quake of the same size.
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 50 km
USGS has not published any M2.5+ earthquake within 50 km in the 30 days after this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 209 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.726 km S of Sijunjung, IndonesiaJune 9, 1943 · 127 km N of this epicenter
- 7.676 km SSW of Sungai Penuh, IndonesiaJune 3, 1909 · 98 km SE of this epicenter
- 7.573 km WSW of Bengkulu, IndonesiaJune 25, 1914 · 247 km SE of this epicenter
- 7.478 km NNW of Curup, IndonesiaJune 8, 1943 · 197 km SE of this epicenter
- 7.0122 km W of Pariaman, IndonesiaMay 8, 1946 · 229 km NW of this epicenter
- 6.8209 km SW of Padang, IndonesiaDecember 24, 1974 · 178 km W of this epicenter
- 6.85 km ENE of Sungai Penuh, IndonesiaOctober 6, 1995 · 91 km E of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 16 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 412 recorded deaths. The most severe:
- 1797M8.0
Sw. Sumatra
10 Feb 1797 · 289 km away · intensity IX
300 deathsModerate damage ($1–5M)tsunami
- 1995M6.8
Sumatera, Jambi Province
6 Oct 1995 · 91 km away
84 deathsExtreme damage ($25M+)
- 1914M7.6
Sumatera
25 Jun 1914 · 249 km away
20 deathsLimited damage (under $1M)tsunami
- 1979M6.6
S Sumatera
15 Dec 1979 · 272 km away
8 deathsSevere damage ($5–24M)
- 1909M7.6
Sw Sumatra: Kerintji, Redjanglebong
3 Jun 1909 · 43 km away
Severe damage ($5–24M)tsunami
- 1833M8.3
Sumatra: Bengkulu
24 Nov 1833 · 53 km away · intensity IX
Moderate damage ($1–5M)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.