M 7.0 earthquake – 34 km E of Dicamay, Philippines
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Local time: Mar 19, 1977 · 05:43 (UTC+8)
MajorShallow · 37 km
Reviewed by a seismologist
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- Magnitude
- 7.0surface-wave magnitude (ms)
- Depth
- 37 kmShallow earthquake
- Epicenter
- 16.773, 122.32763 km from Ilagan
- Energy released
- 477 kilotons of TNTabout 32 × Hiroshima
- Felt reports
- —"Did You Feel It?" responses
- Shaking intensity
- 6.3max. instrumental (MMI)
- Aftershocks
- 37M2.5+ within 73 km, up to 60 days
- Significance
- 754USGS score, 0–1,000+
The strongest here since 1970
The last earthquake at least as strong within 300 km struck on Apr 12, 1970.
How strong was it?
Major earthquake. It released 477 kilotons of TNT, 1,000 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
Aftershocks
37 earthquakes of M2.5+ within 73 km in the 60 days after.
- 5.6 40 km E of Dicamay, Philippines Mar 18, 1977
- 5.5 38 km S of Dicabisagan, Philippines Mar 18, 1977
- 5.2 23 km SE of Dicamay, Philippines Mar 18, 1977
- 5.0 19 km SE of Dicabisagan, Philippines Mar 18, 1977
- 5.3 36 km SSE of Dicabisagan, Philippines Mar 18, 1977
- 5.2 27 km S of Dicabisagan, Philippines Mar 19, 1977
- 5.1 3 km S of Dicabisagan, Philippines Mar 19, 1977
- 4.9 52 km ESE of Dicamay, Philippines Mar 19, 1977
- 4.9 42 km ESE of Dicamay, Philippines Mar 19, 1977
- 5.0 60 km SE of Dicamay, Philippines Mar 19, 1977
The strongest earthquakes within 300 km
Since 1900, around Philippines.
- 7.7 4 km E of Macapsing, Philippines Jul 16, 1990
- 7.6 6 km E of Tignoan, Philippines Aug 20, 1937
- 7.6 28 km SE of Minuri, Philippines Aug 1, 1968
- 7.5 7 km N of Luklukan, Philippines Apr 18, 1907
- 7.4 70 km NE of Sabang Indan, Philippines Apr 18, 1907
- 7.4 14 km ENE of Suklayin, Philippines Apr 7, 1970
- 7.3 14 km WNW of Bolitoc, Philippines Dec 11, 1999
- 7.2 7 km N of Agbannawag, Philippines Dec 29, 1949