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Global Volcanism Program | Image GVP-04268

A nighttime time-exposure photo of Arenal on 3 April 1990 shows the paths of incandescent blocks that landed on the upper flanks and traveled downhill. Near-constant lava effusion, accompanied by periods of heightened explosive activity, has occurred since a large explosive eruption in 1968. Photo by William Melson, 1990 (Smithsonian Institution).

A nighttime time-exposure photo of Arenal on 3 April 1990 shows the paths of incandescent blocks that landed on the upper flanks and traveled downhill. Near-constant lava effusion, accompanied by periods of heightened explosive activity, has occurred since a large explosive eruption in 1968.

Photo by William Melson, 1990 (Smithsonian Institution).

Keywords: eruption | ejecta | ballistic ejecta | ballistics | gas | emissions | blocks | impact | ballistics | bomb


Arenal