Reviewed by USGSVanuatu46y ago
M6.2 earthquake 178 km WNW of Sola, Vanuatu
Monday, October 27, 1980, 13:04:54 UTC · 13.059°S, 166.129°E
A magnitude 6.2 earthquake struck 178 km WNW of Sola, Vanuatu on Monday, October 27, 1980, 13:04:54 UTC, at a depth of 33.0 km (shallow). It is the strongest earthquake within 300 km since an M6.3 on August 2, 1980.
- Magnitude
- 6.2
- Strong · ms
- Depth
- 33 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
30 kilotons of TNT
That is about 2 times the Hiroshima bomb. It released about 63 times the energy of a magnitude 5.0.
Tectonic setting
19 km
from the nearest mapped plate boundary, between the Pacific and Australian plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
33 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 3 M2.5+ earthquakes within 100 km in the following 30 days; the largest was M5.2 on November 15, 1980. 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 554 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.9199 km S of Lata, Solomon IslandsJuly 17, 1980 · 64 km N of this epicenter
- 7.8146 km SSE of Lata, Solomon IslandsDecember 31, 1966 · 138 km N of this epicenter
- 7.8186 km NNW of Sola, VanuatuDecember 17, 1957 · 93 km NE of this epicenter
- 7.745 km NNE of Port-Olry, VanuatuMay 20, 1965 · 211 km SE of this epicenter
- 7.7138 km SSE of Lata, Solomon IslandsJuly 18, 1934 · 141 km N of this epicenter
- 7.5196 km SSE of Lata, Solomon IslandsJuly 8, 1980 · 77 km N of this epicenter
- 7.581 km NW of Port-Olry, VanuatuDecember 28, 1973 · 164 km S of this epicenter
- 7.428 km NW of Lata, Solomon IslandsSeptember 15, 1963 · 287 km N of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 18 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 1 recorded deaths. The most severe:
- 1971M7.1
Espiritu Santo, Port Vila
27 Oct 1971 · 295 km away · intensity VII
1 deathSevere damage ($5–24M)
- 1973M7.5
Espiritu Santo, Luganille
28 Dec 1973 · 164 km away · intensity VII
Moderate damage ($1–5M)
- 1910M7.2
Espiritu Santo
10 Nov 1910 · 112 km away
Moderate damage ($1–5M)tsunami
- 1973M7.2
Luganville, Lamap
29 Dec 1973 · 244 km away · intensity VIII
Moderate damage ($1–5M)
- 1909
Espiritu Santo
8 Jul 1909 · 295 km away
Moderate damage ($1–5M)tsunami
- 1980M7.5
Santa Cruz Islands: Banks
8 Jul 1980 · 77 km away
Limited damage (under $1M)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.