Magnitude6.6

Reviewed by USGSPhilippines120y ago

M6.6 earthquake in Luzon, Philippines

Sunday, November 24, 1907, 13:58:37 UTC · 13.359°N, 122.541°E

A magnitude 6.6 earthquake struck in Luzon, Philippines on Sunday, November 24, 1907, 13:58:37 UTC, at a depth of 15.0 km (shallow). It is the strongest earthquake within 300 km since an M6.8 on July 9, 1907.

Magnitude
6.6
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

116 kilotons of TNT

That is about 8 times the Hiroshima bomb. It released about 243 times the energy of a magnitude 5.0.

Tectonic setting

145 km

from the nearest mapped plate boundary, between the Caribbean and South American plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.

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 5 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 46 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 474 recorded deaths. The most severe:

  1. 1863M6.5

    Manila, Rizal, Bulacan

    3 Jun 1863 · 209 km away · intensity X

    400 deathsExtreme damage ($25M+)tsunami

  2. 1840M6.5

    Sorsogon,Masbate Is,Casiguran,Albay

    22 Mar 1840 · 156 km away · intensity IX

    52 deathsSevere damage ($5–24M)tsunami

  3. 1754

    Taal Volcano

    15 May 1754 · 182 km away · intensity X

    12 deathsExtreme damage ($25M+)

  4. 1743

    Luzon: Tayabas,Laguna

    12 Jan 1743 · 124 km away · intensity X

    5 deathsModerate damage ($1–5M)

  5. 1852M7.5

    Luzon: Bataan, Rizal, Pampanga,Manila

    16 Sep 1852 · 232 km away · intensity IX

    3 deathsSevere damage ($5–24M)tsunami

  6. 1907M7.6

    Se Luzon: Camarines

    18 Apr 1907 · 87 km away · intensity IX

    2 deathsSevere damage ($5–24M)

NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.

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