How to solve three geographical problems?

(1) Pacific Rim volcanic seismic belt. It conflicts with the extinction boundary of the Eurasian plate and the Pacific plate, and the crustal activity is active.

(2) Keelung is stronger than Kaohsiung with the same magnitude. Magnitude is a data description of the Yilan earthquake. Earthquakes have only one magnitude. Intensity is the severity of an earthquake, and the closer it is to the epicenter, the greater the intensity.

(3)① When time permits, quickly walk out of the unit building from the stairs and go to an open place; (2) When time is tight, immediately go to the corner, squat down and curl up, and cover your head with your hands. It is best to have a table and other load-bearing objects in the corner.

The third question:

(1) ① At 20 o'clock on the 20th, Station A was located on the ridge of high pressure, and the wind speed was high; The northwest is the center of high pressure, and the northwest wind blows. Due to the geostrophic force in the northern hemisphere, the northerly wind prevails. ② At 20: 00 on 221day, Station A was controlled by the high-pressure center, and the downward flow prevailed without wind.

(2) It is rainy. At this time (1), the ground is in the center of low pressure, and updraft prevails, which is easy to form rainy weather.

(3) At 20: 00 on 20th, the Sea of Japan to the west of B was the center of low pressure, and at 20: 00, 2 1 on 20th, the center of low pressure was located in the northeast of B, indicating that there was a low-pressure cyclone passing through B on 28th. B is located on the west coast of Japan, which is the windward side of the mountain. Two factors caused the snowstorm weather in B 2 1.