Evaluating-Earth-Shattering Earthquake Warning Signs

Could you be a seismologist?
Take a look at the clues before a volcano erupts.

1. Gigantic Geysers. Geysers are massive jets of steam and boiling water heated up by underground rocks. Geysers are usually found near a volcano. The rocks are heated by the heat of magma of mantle material. Water bursts into the air. Old Faithful in California, USA, usually erupts every 40 minutes. Before an earthquake, the geyser erupts once every 2 hours or more. Scientists aren't sure why this happens but they're not taking any chances. They've got a computer and satellite monitoring the geyser 24 hrs a day.
2. Ghastly Gases. Radon is gas given off by underground rocks.It rises to the surface sometimes, but especially before an earthquake. This is what happened before the 1995 Kobe earthquake in Japan. Sadly, authorities ignored the warning signs.
3. Freaky Foreshocks. Before the main earthquake, there are often lots of mini earthquakes called foreshocks. They get stronger as it gets closer to the earthquake.
4. Frightful Fractoluminescence. If the sky is filled with bright lights (and it's not January 1st), it might be a sign that an earthquake is on its way. An hour before the Kobe earthquake, people remembered seeing streaks of red, green and blue across the sky. The technical name for this is fractoluminescence which means broken lights. Scientists think they are caused by crushed up bits of quartz, a crystal found in rocks. This hasn't been approved by scientist as a valid earthquake waring sign yet.