The presence of these antibodies can tell your doctor or healthcare provider if you have been exposed to hepatitis B, if you have a chronic infection, or if you have previously received the hepatitis B vaccine.he presence of these antibodies can tell your doctor or healthcare provider if you have been exposed to hepatitis B, if you have a chronic infection, or if you have previously received the hepatitis B vaccine.
April 1, 1946: The April Fools tsunami, triggered by an earthquake in Alaska, killed 159 people, mostly in Hawaii. July 9, 1958: Regarded as the largest recorded in modern times, the tsunami in Lituya Bay, Alaska was caused by a landslide triggered by an 8.3 magnitude earthquake.
On other parts of the island of Hawaii, waves reached as high as 60 feet. A schoolhouse in Laupahoehoe was crushed by the tsunami, killing the teacher and 25 students inside. The massive wave was seen as far away as Chile, where, 18 hours after the quake near Alaska, unusually large waves crashed ashore. There were no casualties. This tsunami prompted the U.S. to establish the Seismic SeaWave Warning System two years later.