スマトラ島沖地震
Earthquakes in 2009 resulted in 1,853 fatalities. The 2nd Sumatra earthquake caused an estimated 1,117 deaths to that island, while other majors events struck Italy or Costa Rica. Also notable, the 2009 Samoa earthquake and tsunami registered an 8.1 on the moment magnitude scale, the most powerful earthquake in 2009. The tsunami associated with the Samoa earthquake caused tsunami advisories and warning across the Pacific Ocean rim, also known as the Ring of Fire.