Volcanologists like to analyze the lava of new volcanoes, but getting the lava samples can be a sticky business. Last week two scientific adventurers from San Diego, Adrian Richards and Lewis Walker, told about their dangerous visit to El BoquerĂ³n (Big Mouth), the new volcano on tiny San Benedicto Island off the west coast of Mexico. They were the first to set foot on the still-smoking cone.
When they started for the volcano on board the research yacht Observer, they had been told that its activity was dying down. This report, they found, was premature. A great hole had opened in...