It's generally the wrong kind of volcano to 'blow up' like say Mt St Helens. The lava flows easier which lets it escape at lower pressures over longer periods of time (days-months rather minutes-hours), which prevents the massive explosive eruptions from happening - but also allows the lava to travel a lot farther from the source.
countfizix t1_iu5u0hu wrote
Reply to comment by MalcolmLinair in Hawaii's Big Island residents get warning as huge volcano rumbles by StoneLegionYT
It's generally the wrong kind of volcano to 'blow up' like say Mt St Helens. The lava flows easier which lets it escape at lower pressures over longer periods of time (days-months rather minutes-hours), which prevents the massive explosive eruptions from happening - but also allows the lava to travel a lot farther from the source.