 Complete the following phrase:  In June 2020, the Icelandic Meteorological Office IMO issued a warning that an eruption might take place in the coming weeks or months, following scientists reporting high levels of sulfur dioxide, which is indicative of the presence of shallow magma. IMO warned that a glacial flood as a result of melting ice could trigger an eruption. According to scientists, the effects of a future eruption of Grímsvötn would not be as severe as the 