Chlamydia is one of the most common STDs, particularly among college-aged men and women. Fortunately, unlike in the old days, it's now quite easy and painless to get tested and treated for a chlamydia infection. In recent years, tests have been developed that can detect chlamydia and be completed in just a few hours.
Seismograms A, B, C, and D. show, in Greenwich time, the arrival times of the. earthquake waves at the four stations. The P-wave generated by this earthquake took 2 minutes. and 40 seconds to reach one of the seismic stations.
An earthquake can strike at any time without warning. Each year, between 70 and 75 earthquakes cause damage around the world. In the United States, a future earthquake could cost up to $200 billion. There are 41 territories and states in the U.S. that fall under moderate to high risk of earthquakes. Move to higher ground if an earthquake occurs while you are in a coastal area. 2  Earthquakes often cause tsunamis. 3  If an earthquake occurs while you are in a mountainous area, be cautious and look for falling rocks or debris.