May 21, 7:13pm – video by the Red Sismológica Nacional (RSN) – National Seismological Network – show the magnitude of the 7:20am Friday morning eruption of the Turrialba volcano.

The event lasted for six minutes and sent up a column of material to almost 3.000 metres (3 kilometres) above the crater.

Saturday afternoon the colossus continued, at a lower intensity, to spew ash and gas. Many area of northeast and west of San Jose have been affected by the ashfall.

Although the San Jose airport operations have not been affected, two airlines cancelled flights on Saturday between Costa Rica and the United States.