Eruptions of 1947.2C 1948 and 1950 Cerro Negro

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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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