Pinatubo dust is still a killer

日期:2019-03-05 02:06:08 作者:钮谡杏 阅读:

By Betsy Mason WHEN Mount Pinatubo erupted in 1991 it killed hundreds of people and displaced around a million from their homes. But that may not have been the end of it. Fine ash from the Philippine volcano could still be killing people today. Geologists believed that when Mount Pinatubo erupted 11 years ago, it launched debris toward the stratosphere in a compact fountain, forming an enormous ash cloud high above the ground. But now an international team of volcanologists says at least part of Pinatubo’s fountain collapsed,