Turrialba Volcano (Costa Rica): Intense Activity And Ash Emissions

After a day of relative calm, a new pulse of ash emissions occurred from the volcano this morning.


The current phase of activity at the volcano began around 13 Sep with renewed, but sporadic and weak ash emissions, but intensified drastically on 19 Sep reaching a new peak of activity (so far).

Between 02:53 and 15:30 local time, the volcano produced several phases of near-continuous explosive activity with strong ash emissions, generating several ash plumes that rose more than 1000 m, drifted west into the Central Valley, causing moderate to heavy ash falls and forcing a temporary closure of the capital’s Juan Santamaria International Airport.

Some of the explosions were strong enough that part of the dense eruption columns collapsed into small pyroclastic flows that spread onto the crater floor. There are no reports of damage or injuries.