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.
The magnitude 6.7 earthquake was felt as far away as Las Vegas and Baja California. The shaking lasted eight seconds, though its reverberations were felt for as long as 30 seconds in some places. Despite the earthquake's name, the fault was actually under 11 miles under Reseda. It was on a blind thrust fault, which means that the fault doesn't reach the earth's surface.