Reviewed by USGSPhilippines115y ago
M6.5 earthquake 166 km ENE of Barcelona, Philippines
Saturday, April 26, 1913, 04:21:05 UTC · 8.698°N, 127.845°E
A magnitude 6.5 earthquake struck 166 km ENE of Barcelona, Philippines on Saturday, April 26, 1913, 04:21:05 UTC, at a depth of 15.0 km (shallow). It is the strongest earthquake within 300 km since an M7.2 on April 25, 1913.
- Magnitude
- 6.5
- 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
71 kilotons of TNT
That is about 5 times the Hiroshima bomb. It released about 150 times the energy of a magnitude 5.0.
Tectonic setting
83 km
from the nearest mapped plate boundary, between the Philippine Sea and Sunda 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 10 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.774 km ENE of Barcelona, PhilippinesJuly 12, 1911 · 93 km W of this epicenter
- 7.270 km ENE of La Paz, PhilippinesApril 25, 1913 · 127 km NW of this epicenter
- 7.110 km W of Bigaan, PhilippinesJuly 20, 1907 · 187 km W of this epicenter
- 6.616 km E of Cagdianao, PhilippinesApril 24, 1913 · 260 km NW of this epicenter
- 6.640 km ENE of Cortes, PhilippinesApril 18, 1913 · 169 km NW of this epicenter
- 6.642 km E of Aras-asan, PhilippinesOctober 10, 1906 · 127 km W of this epicenter
- 6.421 km E of Union, PhilippinesApril 24, 1913 · 204 km NW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 9 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700. The most severe:
- 1879
Nw Mindanao: Surigao
30 Jun 1879 · 285 km away · intensity X
Extreme damage ($25M+)
- 1911M7.8
Mindanao: Talacogon,Davao,Butuan
12 Jul 1911 · 205 km away · intensity X
Severe damage ($5–24M)tsunami
- 1885
E Mindanao: Surigao
22 Feb 1885 · 285 km away · intensity VIII
Severe damage ($5–24M)
- 1903M7.8
Davao Gulf
28 Dec 1903 · 277 km away · intensity VIII
Moderate damage ($1–5M)
- 1909
Mindanao: E
18 Mar 1909 · 121 km away · intensity VIII
Moderate damage ($1–5M)
- 1910M6.2
Sulu Sea
30 Dec 1910 · 260 km away · intensity VII
Limited damage (under $1M)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.