The blog of Xeno, a slightly mad scientist
Are you ready?
A supervolcano is any volcano capable of producing a volcanic eruption with an ejecta volume greater than 1,000 km3 (240 cu mi). This is thousands of times larger than normal volcanic eruptions. Supervolcanoes can occur when magma in the mantle rises into the crust from a hotspot but is unable to break through the crust, and pressure builds in a large and growing magma pool until the crust is unable to contain the pressure (this is the case for the Yellowstone Caldera). They can also form at convergent plate boundaries (for example, Toba).
Although there are only a handful of Quaternary supervolcanoes, supervolcanic eruptions typically cover huge areas with lava and volcanic ash and cause a long-lasting change to weather (such as the triggering of a small ice age) sufficient to threaten species with extinction.
Our species is wasting its borrowed time and talents on small stuff. We must focus our energy on survival or we simply won’t. What good is knowledge if we don’t use it well? We know, for example, that planet killing collisions happen. We need to be mining asteroids and we should have a self-sustaining colony on the moon by now. Of course, at the time I’m writing this, most people still believe the Apollo missions were real, that we went to the moon and came back and that radiation in space is not as bad as I think it may really be. We must get organized and fight the big fights. Focus. Put aside the small stuff.