For those who want to learn.

There is a paper, in Spanish (translating it is a matter for you), that recounts the 1949 eruption in extraordinary qualitative detail. Typical of an era when scientists reported their observations and measurements in detail. No models and no modern math, but an historical example of the records:

San Miguel de la Cámara, M., Fúster Casas, J. M., & Martel, Y. (1952). The eruptions and materials thrown out by them on the island of La Palma - June-July 1949. Bulletin Volcanologique, 12(1), 145-163.

[link to sci-hub.se (secure)]

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