Reviewed by USGSNew Caledonia19y ago
M4.3 earthquake 101 km NE of Tadine, New Caledonia
Friday, August 3, 2007, 00:10:47 UTC · 20.809°S, 168.452°E
A magnitude 4.3 earthquake struck 101 km NE of Tadine, New Caledonia on Friday, August 3, 2007, 00:10:47 UTC, at a depth of 35.0 km (shallow).
- Magnitude
- 4.3
- Light · mb
- Depth
- 35 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
43 tons of TNT
That is about 1/354 of the Hiroshima bomb. A magnitude 5.0 releases about 11 times more energy.
Tectonic setting
14 km
from the nearest mapped plate boundary, between the New Hebrides and Australian plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
35 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 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 1,066 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 8.11920 Vanuatu EarthquakeSeptember 20, 1920 · 92 km N of this epicenter
- 7.999 km SW of Port-Vila, VanuatuDecember 2, 1950 · 283 km N of this epicenter
- 7.828 km ESE of Isangel, VanuatuJune 16, 1910 · 176 km NE of this epicenter
- 7.7249 km E of Vao, New CaledoniaMay 16, 1995 · 287 km SE of this epicenter
- 7.663 km NW of Isangel, VanuatuOctober 14, 1913 · 198 km N of this epicenter
- 7.6274 km ESE of Tadine, New CaledoniaMarch 16, 1928 · 265 km SE of this epicenter
- 7.447 km NW of Isangel, VanuatuOctober 11, 1992 · 181 km N of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 25 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 26 recorded deaths. The most severe:
- 1875M8.1
Loyalty Islands: Lifou Island
28 Mar 1875 · 90 km away
26 deathsSevere damage ($5–24M)tsunami
- 1901M7.9
Loyalty Islands
9 Aug 1901 · 208 km away
Moderate damage ($1–5M)tsunami
- 1920M8.1
Loyalty Islands
20 Sep 1920 · 92 km away
Limited damage (under $1M)tsunami
- 1878M7.5
Tanna Island
10 Jan 1878 · 201 km away
Limited damage (under $1M)tsunami
- 1961M7.3
Vanuatu Islands
23 Jul 1961 · 266 km away · intensity VI
Limited damage (under $1M)tsunami
- 1913M8.1
Vanuatu Islands
14 Oct 1913 · 156 km away
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.