For links to webcams fixed on nervous volcanos around the world,
To visit and explore volcanoes, try: www.volcanodiscovery.com/
Earthquakes happen often everywhere: take a look at almost-real-time
occurrences: http://earthquake.usgs.gov/ and
For information on tsunamis, see www.tsunami.noaa.gov/
Weather Underground explains what you need to know about storm surges: https://www.wunderground.com/hurricane/surge.asp
For thunderstorms as well as tornadoes, see:
NOAA's Severe Weather Center maintains a live map -- see: www.spc.noaa.gov/.
HURRICANES AND CYCLONES:
For a worldwide map of current conditions, see: www.avalanche.org.
For travel worldwide, see: https://travel.state.gov/content/passports/en/alertswarnings.html
aegypti [left] mosquitoes are the principal carriers of Zika virus and other diseases, like yellow fever. Aedes albopictus [right] (the black and white "Tiger") mosquitoes carry Dengue fever and several serious viruses.
The problem is, they move around, both the mosquitoes, now headed north; and the
viruses they carry, transmitted between humans in blood and sperm. Zika virus has been confirmed as the cause of microcephaly
in babies as the fetus grows in the affected mother's womb; but it can also cause neurological
damage in adults, young and old, who are bitten by the mosquito.
The best preventive is at the source: mosquito repellent on your body and clothes. Wear
long sleeves and pants. With an evil twist, the Aedes aegypti tend to strike during daylight and are found everywhere, not
just near pools of water, but also under beds and chairs. If you find 100% DEET creepy, there are other
more palatable options now which work as well. See http://www.cdc.gov/features/stopmosquitoes/