Reviewed by USGSPhilippines120y ago
M6.8 earthquake 24 km N of Panukulan, Philippines
Tuesday, July 9, 1907, 18:54:58 UTC · 15.152°N, 121.796°E
A magnitude 6.8 earthquake struck 24 km N of Panukulan, Philippines on Tuesday, July 9, 1907, 18:54:58 UTC, at a depth of 15.0 km (shallow). It is the strongest earthquake within 300 km since an M7.4 on April 18, 1907.
- Magnitude
- 6.8
- 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
256 kilotons of TNT
That is about 17 times the Hiroshima bomb. It released about 537 times the energy of a magnitude 5.0.
Tectonic setting
16 km
from the nearest mapped plate boundary, between the Caribbean and South American plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
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 3 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 45 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 444 recorded deaths. The most severe:
- 1863M6.5
Manila, Rizal, Bulacan
3 Jun 1863 · 112 km away · intensity X
400 deathsExtreme damage ($25M+)tsunami
- 1880M7.5
S Coast Luzon: Pasig River,Pampanga
18 Jul 1880 · 94 km away · intensity IX
20 deathsSevere damage ($5–24M)tsunami
- 1754
Taal Volcano
15 May 1754 · 154 km away · intensity X
12 deathsExtreme damage ($25M+)
- 1743
Luzon: Tayabas,Laguna
12 Jan 1743 · 130 km away · intensity X
5 deathsModerate damage ($1–5M)
- 1852M7.5
Luzon: Bataan, Rizal, Pampanga,Manila
16 Sep 1852 · 189 km away · intensity IX
3 deathsSevere damage ($5–24M)tsunami
- 1907M7.6
Se Luzon: Camarines
18 Apr 1907 · 182 km away · intensity IX
2 deathsSevere damage ($5–24M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.