Reviewed by USGSIndonesia34y ago
M6.6 earthquake 172 km NNW of Maumere, Indonesia
Sunday, August 2, 1992, 12:03:20 UTC · 7.126°S, 121.748°E
A magnitude 6.6 earthquake struck 172 km NNW of Maumere, Indonesia on Sunday, August 2, 1992, 12:03:20 UTC, at a depth of 485.9 km (deep). It is the strongest earthquake within 300 km since an M6.9 on June 7, 1991.
- Magnitude
- 6.6
- Strong · mwb
- Depth
- 486 km
- Deep
- 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
120 kilotons of TNT
That is about 8 times the Hiroshima bomb. It released about 251 times the energy of a magnitude 5.0.
Tectonic setting
101 km
from the nearest mapped plate boundary, between the Banda Sea and Timor plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.
Depth: deep
486 km
Deep earthquakes (over 300 km) happen deep inside subducting plates. They rarely cause damage, but can be felt faintly over very large distances.
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 205 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.270 km SE of Maumere, IndonesiaOctober 20, 1938 · 234 km SE of this epicenter
- 7.1135 km NNE of Labuan Bajo, IndonesiaMay 24, 1990 · 155 km W of this epicenter
- 7.0199 km SSW of Katabu, IndonesiaMarch 3, 1927 · 59 km NE of this epicenter
- 7.0194 km SE of Baubau, IndonesiaAugust 6, 1914 · 255 km E of this epicenter
- 6.9215 km NW of Maubara, Timor LesteOctober 18, 1964 · 230 km E of this epicenter
- 6.9160 km NNE of Maumere, IndonesiaJune 7, 1991 · 87 km E of this epicenter
- 6.889 km NW of Pante Makasar, Timor LesteJune 25, 1953 · 285 km SE of this epicenter
- 6.892 km NNW of Pante Makasar, Timor LesteJune 26, 1953 · 288 km SE 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 2,640 recorded deaths. The most severe:
- 1992M7.8
Flores Region, Maumere, Babi
12 Dec 1992 · 151 km away · intensity XI
2,500 deaths$100 million damagetsunami
- 1987M6.5
Timor: Pantar, Mount Sirung
26 Nov 1987 · 293 km away
125 deaths$5 million damagetsunami
- 1982M5.9
Flores Island: Eastern
25 Dec 1982 · 204 km away
13 deaths$1 million damagetsunami
- 1961M6.5
Flores: Endeh
16 Mar 1961 · 123 km away · intensity VIII
2 deathsModerate damage ($1–5M)
- 1982M5.6
Flores Islands: Ruteng
6 Aug 1982 · 190 km away
Moderate damage ($1–5M)
- 1944M7.5
Flores
22 Mar 1944 · 246 km away
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.