January 15, 1934 Earthquake: Bihar, Nepal, India
A magnitude 8 earthquake struck Bihar, Nepal, India on January 15, 1934 at 08:43:25 UTC, 35 km below the surface. It killed 10,600 people, counting the tsunami it caused.
Map
Where it struck, with the other significant earthquakes within 200 km. Circles are sized and colored by magnitude; select one for its page.
The earthquake
- Date
- January 15, 1934
- Time
- 08:43:25 UTC
- Place
- Bihar, Nepal, India
- Magnitude
- 8 (Mw)
- Focal depth
- 35 km (22 mi)
- Intensity
- 11 on the Modified Mercalli scale
- Tsunami
- Yes: the tsunami it caused
- Epicenter
- 26.773° N, 86.762° E
- Country
- Nepal
The toll
- Deaths
- 10,600
- Damage
- Extreme (about $25 million or more)
- Houses destroyed
- Very many (over 1,000)
- Houses damaged
- Very many (over 1,000)
Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.
What the record says
NCEI’s account, from the sources it cites.
January 15, - Epicentre 26.5 N, 86.5 E. Mag. 8.3. North Bihar. One of the most severe in Indian history. Felt over an area of 1,900,000 sq. miles. At least 10,000 lives lost. Epicentre occupied a belt aligned WNW-ESE and running for some 8O miles from east of Motihari through Sitamarhi to Madhurai. Origin attributed by D. N. Wadia, J. A. Dunn, J. B. Auden and A. M. N. Ghosh to movement along a fault or series of faults below the alluvium. (reference #1095)
January 15, 1934. Seismograms at stations in India as well as in all distant parts of the world made it possible to locate the epicenter and to fix the magnitude at 8.4. The extent of the isoseismals places this earthquake only a little below that of 1897. Intensity X on the Mercalli scale was assigned to a belt about 80 miles long by 20 miles wide, and to two spots almost 100 miles distant from the main belt, at Monghyr to the south and in the Nepal
Valley to the north. The isoseismal of intensity IX was drawn to include an area which the authors of the report name "the slump belt," about 190 miles long and of irregular width exceeding 40 miles in places. The main belt
of intensity X lies entirely within the slump belt. (reference #1006)
January 15, 1934, India: Bihar-Nepal, magnitude 8.4 Ms, 10,700 deaths. Effects typical for large thicknesses of sediments and alluvium. Fissures opened up, one being 5m deep, 10 m wide and nearly 300m long. Almost all houses either tilting or sinking into the ground, up to 1 m. (reference #1003)
January 15, 1934, Nepal/India border, 26.5 N, 86.5 E, intensity XI, magnitude 8.3 MS. (reference #1212)
January 15, 1934, 08:43:18 UTC, 26.5 N, 86.5 E, shallow depth, magnitude 8.4 MS. (reference #88)
January 15, 1934, 08;43:18 UTC, 26.5 N, 86.5 E, magnitude 8.3 MS. (reference #130)
January 15, 1934, 26.5 N, 86.5 E, magnitude 8.3. (reference #1276)
January 15, 1934, India-Nepal, magnitude 8.3 MS, 8.1 Mw. (reference #1314)
January 15, 1934, N. Bihar, magnitude 8.4 MS, 10,600 dead. (reference #1002)
January 15, 1934, Bihar-Nepal, magnitude 8.4 MS, 26.5 N, 86.5 E. The earthquake caused damage in Rangpur. (reference #11454)
January 15, 1934, Bihar-Nepal, magnitude 8.3, 26.5 N, 86.5 E. 13772 dead. (reference #12584)
1934, January 15, 8:43:25.39 UTC. 26.773, 86.762 E, 35 km depth, 8.1 M GSX, 8 Mw P&S, 8.3 Ms ABE1, 8.1 Ms P&S, 7.8 mB ABE1, 8.4 UK B&D. (reference #9910)
Our findings at the Sir River site therefore imply that two surface ruptures, each with plausibly about 4-5m of throw, formed on splays of the Patu thrust during both the 1934 Bihar-Nepal earthquake and the catastrophic ad 1255 event, which killed 30% of the population of Kathmandu, including King Abhaya Malla. (reference #10356)
Other significant earthquakes nearby
Within 200 km, the deadliest first.
- August 20, 1988, Kathmandu, Bihar, Nepal-India
- September 18, 2011, Sikkim, Nepal, China, Bhutan, India
- May 12, 2015, Dolakha, Nepal
- February 14, 2006, Sikkim, India
- November 27, 2016, Mount Ama Dablam, Charikharka, Nepal
- June 21, 2017, Dhading, Nepal
- June 7, 1255, Kathmandu, Nepal
- May 23, 1866, Kathmandu, Nepal
- July 7, 1869, Kathmandu, Nepal
More
Significant earthquakes of 1934The 1900sEvery quake the USGS located in 1934Recent earthquakes near hereThis day in weather history
Sources
Significant earthquakes from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. NCEI earthquake 3528.