Reviewed by USGSPhilippines102y ago
M6.2 earthquake 1 km W of Novallas, Philippines
Tuesday, May 5, 1925, 11:58:45 UTC · 9.513°N, 123.113°E
A magnitude 6.2 earthquake struck 1 km W of Novallas, Philippines on Tuesday, May 5, 1925, 11:58:45 UTC, at a depth of 15.0 km (shallow). It is the strongest earthquake within 300 km since an M6.8 on May 5, 1925.
- Magnitude
- 6.2
- 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
25 kilotons of TNT
That is about 2 times the Hiroshima bomb. It released about 53 times the energy of a magnitude 5.0.
Tectonic setting
380 km
from the nearest mapped plate boundary, between the Philippine Sea and Sunda 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 14 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.25 km NW of Kadingilan, PhilippinesMarch 2, 1923 · 284 km SE of this epicenter
- 7.15 km N of Capoocan, PhilippinesMarch 5, 1908 · 264 km NE of this epicenter
- 6.829 km NNW of Roxas City, PhilippinesMarch 12, 1915 · 263 km N of this epicenter
- 6.85 km NNW of Nalundan, PhilippinesMay 5, 1925 · 33 km N of this epicenter
- 6.616 km E of Cagdianao, PhilippinesApril 24, 1913 · 299 km E of this epicenter
- 6.55 km SSW of Mantalongon, PhilippinesOctober 11, 1906 · 80 km NE of this epicenter
- 6.410 km W of Wao, PhilippinesJuly 13, 1922 · 260 km SE of this epicenter
- 6.325 km WSW of Jabonga, PhilippinesApril 28, 1913 · 240 km E of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 23 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 22 recorded deaths. The most severe:
- 1925M6.8
W. Luzon Island, Philippines
5 May 1925 · 51 km away · intensity IX
17 deathsModerate damage ($1–5M)tsunami
- 1922M6.3
Cebu Island, Mactan Island
27 Feb 1922 · 132 km away · intensity V
5 deathsModerate damage ($1–5M)tsunami
- 1879
Nw Mindanao: Surigao
30 Jun 1879 · 264 km away · intensity X
Extreme damage ($25M+)
- 1897M7.9
Masbate Island
13 May 1897 · 293 km away · intensity VIII
Severe damage ($5–24M)tsunami
- 1902M7.3
Mindanao: Lanao, Cotabato
21 Aug 1902 · 228 km away · intensity X
Severe damage ($5–24M)tsunami
- 1743
Leyte
Sep 1743 · 228 km away
Severe damage ($5–24M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.