Assertion: magma's amount | /r/HasSubevent | first hour
Facets:
value: with the eruption of eyjafjallajökull
type: OTHER
Source sentences:
text: In 2010 with the eruption of Eyjafjallajökull, the amount of bromine oxide released resulted in a 84% destruction of surrounding ozone in the first hour and the 90% destruction in first 6 hours (Vance, 2010).