Tectonic Summary
Magnitude 6.9 KAMCHATKA PENINSULA, RUSSIA
2004 June 10 15:19:57 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
This earthquake occurred within the Pacific plate, which subducts to the northwest beneath the North American plate. The rate of relative plate convergence is 77 mm/year. Beneath central Kamchatka, the Pacific plate dips to the northwest at an angle of 45 degrees and is known to be seismically active to a depth of about 200 km. The June 10, 2004, earthquake occurred within tens of kilometers of the magnitude 6.9 earthquake of June 16, 2003.
