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Earthquake tidbit 1 How to be prepared for a large earthquake If you live in Japan, you should always be prepared for an earthquake. Japan is sitting on four different tectonic plates, so it is an earthquake kingdom. Generally they are unexpected. So always be prepared. Of course, if you live in Japan you already have emergency food and water supplies. Right? You also need to make sure you have a ...
How to be prepared for a large earthquake
Apr 22, 2026
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How and where is magma made? Some of you, if you are my age or more, may not have learned about plate tectonics in school. When I was in university, I took some geology modules to get my teaching certification, and one of them included plate tectonics. I distinctly remember the professor being terribly excited and calling it “cutting edge science.” Depending on how you want to slice it, the ea...
How and where is magma made?
Apr 02, 2026
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Magma is classified according to the percent of silica in it. Silica, usually in the form of SiO2, silicon dioxide, is usually seen in rocks as quartz. The more silica a magma has, the more viscous (thick) it is, the cooler it is, the less runny it is, and the more gas it can hold before erupting. Here’s some vocabulary: Mafic rocks are darker and have less silica. Felsic rocks are lighter color...
Types of magma and lava
Feb 28, 2026
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