Sunda Trench is considered to be part of the Pacific Ring of Fire as well as one of a ring of oceanic trenches around the northern edges of the Australian Plate. In 2005, scientists found evidence that the 2004 earthquake activity in the area of the Java Trench could lead to further catastrophic shifting within a relatively short period of time, perhaps less than a decade. This threat has resulted in international agreements to establish a tsunami warning system in place along the Indian Ocean coast. For about half its length, off of Sumatra, it is divided into two parallel troughs by
Tintina Trench Tintina Trench The Tintina Trench is a large valley extending through Yukon, Canada. It is the northern extension of the Northern Rocky Mountain Trench in British Columbia and it has its origin from the Tintina Fault. The northern part of the valley is occupied by the Pelly River, a tributary of the Yukon River. The southern Tintina Trench is drained by the Liard River which first flows south-eastward, then eastward and finally merges into the Mackenzie River at Fort Simpson, NWT where the combined waters turn back north for the Mackenzie's long flow to the Arctic Ocean. Communities and features