Significant earthquakes of 1997

August 20, 1997 Earthquake: N. Sumatera, Aceh, Banda Aceh, Medan, Indonesia

August 20, 1997 · M6

A magnitude 6 earthquake struck N. Sumatera, Aceh, Banda Aceh, Medan, Indonesia on August 20, 1997 at 07:15:15 UTC, 33 km below the surface.

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
August 20, 1997
Time
07:15:15 UTC
Place
N. Sumatera, Aceh, Banda Aceh, Medan, Indonesia
Magnitude
6 (Mw)
Focal depth
33 km (21 mi)
Tsunami
None recorded
Epicenter
4.358° N, 96.494° E
Country
Indonesia

The toll

Damage
Moderate (about $1 to $5 million)
Houses destroyed
Many (101 to 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.

1997, Aug 20. Several hundred houses destroyed in Aceh. Felt at Banda Aceh, Medan and other parts of northern Sumatera.

Felt at Alor Setar, Petaling Jaya, Pinang and Shah Alam,

Malaysia. Also felt at Ban Hat Yai and Songkhla, Thailand. (reference #1053)

Other significant earthquakes nearby

Within 200 km, the deadliest first.

More

Significant earthquakes of 1997The 1900sEvery quake the USGS located in 1997Recent 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 5471.