This was a fairly large eruption.  These are the specifics they measured from Thursday:

The eruption sent lava up to 1 km (0.6 miles) shooting into the sky and an ash plume 3 km (1.9 miles) into the sky. On top of the spectacular display of molten rock and volcanic ash, volcanic lightning surrounded the ash plume. The volcanic lightning, also called a dirty thunderstorm, is produced as the volcanic ash builds up electric charge by rubbing against other particles. This combination produces a charge imbalance that results in lightning strikes in areas of dense ash.

We hope everyone stays safe!  And a big congrats to the brave photographers for getting this awesome footage.

Check back for updates as they come in!

thanks to forbes.com for the great info