World Map › Major Earthquakes Since 1900 › 1993
Historic Earthquake
1993 Guam Earthquake
8 August 1993 · Tuman Bay, Apra Harbor · Usa Territory
On 8 August 1993 at 08:34 UTC, a magnitude 7.8 earthquake struck Usa Territory (Tuman Bay, Apra Harbor), at a depth of 59 km. It occurred on the Mariana Plate, 89 km from its boundary with the Pacific Plate (subduction zone). It triggered a tsunami.
- Date
- 8 August 1993
- Time
- 08:34 UTC
- Magnitude
- 7.8
- Depth
- 59 km
- Maximum Intensity
- IX (Mercalli)
- Injuries
- 48
- Estimated Damage
- 250 million US dollars
- Tsunami
- See the tsunami (2.4 m wave)
- Plate
- Mariana Plate
- Country
- Usa Territory
- Nearest Volcano
- Seamount X (90 km)
Nearby Major Earthquakes
Other major earthquakes recorded within 300 km.
- 2002Usa Territory · M 7.1
- 2001Usa Territory · M 7.0
- 1909Usa Territory · M 8.0
Sources: NOAA National Centers for Environmental Information, Global Significant Earthquake Database (doi:10.7289/V5TD9V7K) · Wikidata · Bird (2003), PB2002 · Natural Earth