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To help prevent harm when living or working on or near a volcano, countries have adopted classifications to describe the various levels and stages of volcanic activity, the two main volcano warning systems being colour codes and/or numeric alert levels. [7] United States Alert System; Indonesia Alert System [8] Russia; Alaska Alert System
In October 2006, the United States Geological Survey (USGS) adopted a nationwide alert system for characterizing the level of unrest and eruptive activity at volcanoes. The system is now used by the Alaska Volcano Observatory, the California Volcano Observatory (California and Nevada), the Cascades Volcano Observatory (Washington, Oregon and Idaho), the Hawaiian Volcano Observatory and the ...
On 4 November 2024, the volcano spewed molten debris at several villages some 4 km (2.5 mi) away, destroying homes and killing at least nine. [74] The Centre of Volcanology and Geological Hazard Mitigation recommended that a 7 km (4.3 mi) radius around the volcano be evacuated. [75] Seven villages were affected by the eruption. [76]
Volcanoes vary greatly in their level of activity, with individual volcanic systems having an eruption recurrence ranging from several times a year to once in tens of thousands of years. [62] Volcanoes are informally described as erupting, active, dormant, or extinct, but the definitions of these terms are not entirely uniform among ...
2 Indonesia: 1944 [30] 114 Dieng Volcanic Complex: 1 Indonesia: 1964 [30] 108 to 120 Mount Tarawera: 5 New Zealand: 1886 1886 eruption of Mount Tarawera: 106 Dubbi: 3 Eritrea: 1861 [6] 87 Volcán Arenal: 3 Costa Rica: 1968 [31] 80 Mount Marapi: 2 Indonesia: 1979 1979 eruption of Mount Marapi [32] 79 Mount Mayon: 2 Philippines: 1993 [16] 70 ...
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This list is incomplete; you can help by adding missing items. ( August 2008 ) This is a list of notable people who died as a result of injuries sustained during a volcanic eruption .
On July 1, the volcano erupted at around 3:16 p.m. local time and lasted for five minutes, and the alert level was raised from level 2 to level 3. The volcano had several smaller eruptions later that day. [31] [32] [8] On July 4, PHIVOLCS reported Taal Volcano's highest sulfur dioxide emission on record. [33]