Eruptions of 1947.2C 1948 and 1950 Cerro Negro
eruption of cerro negro in 1948
another 18 years passed before cerro negro erupted again, on july 9, 1947 volcano had largest eruption date. vei recorded @ 3 along summit , ne flank, eruptive characteristics including central vent eruption, flank venting, , lava flows. evacuations called malpaisillo village, , major land , property damage resulted volcano’s explosive eruptions. recorded lava volume 3.8 x 10 m , recorded tephra volume 3.1 x 10 m.
less 1 year later, on march 31, 1948, cerro negro recorded strombolian eruption (vei 2) central vent. no lava or tephra volumes recorded, however. similar eruption occurred in june 1949, vei 2 eruption exploding central vent.
another sub-plinian vei 3 explosive vulcanian eruption occurred cerro negro’s central vent november 21 december 17, 1950. lava flows resulted, evacuation unnecessary. lava volume 1.0 x 10 m , tephra volume 3.8 x 10 m particular eruption.
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