If cardiac ischemia lasts too long, the starved heart tissue dies. This is a heart attack, otherwise known as a myocardial infarction -- literally, death of heart muscle..ost heart attacks occur during several hours -- so never wait to seek help if you think a heart attack is beginning. In some cases there are no symptoms at all, but most heart attacks produce some chest pain. Other signs of a heart attack include shortness of breath, dizziness, faintness, or nausea.
About Krakatoa Volcano. Krakatoa, also known as Krakatau is a small island volcano found in Indonesia, between Java and Sumatra, in the Sunda Strait. For more than 200 years Krakatoa was a quiet, little-noticed island with no eruption occurring.bout Krakatoa Volcano. Krakatoa, also known as Krakatau is a small island volcano found in Indonesia, between Java and Sumatra, in the Sunda Strait. For more than 200 years Krakatoa was a quiet, little-noticed island with no eruption occurring.
Krakatoa is a Caldera Volcano. A caldera is a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption. They are sometimes confused â¦ with volcanic craters.