Diseases, Conditions, Syndromes

Where people burn out most during COVID-19

Research is identifying the regions where working adults are more likely to burn out during the COVID-19 crisis: The key is the distance to the epicenter—but not how you might imagine.

Diseases, Conditions, Syndromes

Cholera outbreak has killed 55 in Niger: UN

A cholera outbreak in Niger has killed 55 people and sickened thousands near the country's border with Nigeria since July, the UN has said, warning that the disease "has spread" to new regions.

Diseases, Conditions, Syndromes

Ebola-hit African states seal off outbreak epicentre

Guinea, Liberia and Sierra Leone announced Friday an isolation zone sealing off the epicentre of the world's worst-ever Ebola outbreak, where the three countries meet.

Diseases, Conditions, Syndromes

Ebola claims up to 33 lives in DR Congo: health ministry

An outbreak of Ebola fever in the Democratic Republic of Congo may have killed up to 33 people, while the number of suspected cases has risen, the health ministry said on Thursday.

Diseases, Conditions, Syndromes

Ebola claims up to 32 lives in DR Congo: WHO (Update)

An outbreak of Ebola fever in the Democratic Republic of Congo may have claimed up to 32 lives since May, including that of a woman who had just given birth, the World Health Organisation said Tuesday.

Diseases, Conditions, Syndromes

Cambodians fight malaria with the push of a button

Cambodian villagers armed with a little medical know-how—and their mobile telephones—are the nation's new foot soldiers in the fight against drug-resistant malaria.

Diseases, Conditions, Syndromes

Ebola caseload soars in eastern DR Congo

The number of people with Ebola, a rare haemorrhagic disease, in northeastern Democratic Republic of Congo has tripled since mid-August, the World Health Organisation said Tuesday, after 14 patients died in two weeks.

Cardiology

Rising cardiovascular incidence after Japanese earthquake 2011

The Japanese earthquake and tsunami of 11 March 2011, which hit the north-east coast of Japan with a magnitude of 9.0 on the Richter scale, was one of the largest ocean-trench earthquakes ever recorded in Japan. The tsunami ...

Diseases, Conditions, Syndromes

Afghan polio cases rise, govt appeals to militants

Afghan President Hamid Karzai urged insurgents Tuesday to allow health teams to vaccinate children in war-torn parts of the country where cases of polio have risen sharply.

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Epicenter

The epicenter or epicentre (pronounced /ˈɛpɪsɛntər/) is the point on the Earth's surface that is directly above the hypocenter or focus, the point where an earthquake or underground explosion originates. The word derives from the New Latin noun epicentrum, the latinisation of the ancient Greek adjective ἐπίκεντρος (epikentros), "occupying a cardinal point, situated on a centre", from ἐπί (epi) "on, upon, at" and κέντρον (kentron) "centre".

In the case of earthquakes, the epicenter is directly above the point where the fault begins to rupture, and in most cases, it is the area of greatest damage. However, in larger events, the length of the fault rupture is much longer, and damage can be spread across the rupture zone. For example, in the magnitude 7.9, 2002 Denali earthquake in Alaska, the epicenter was at the western end of the rupture, but the greatest damage occurred about 330 km away at the eastern end of the rupture zone.

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