Earthquakes

Magnitude 5+ Earthquakes – Global

5.4 Earthquake hits the Banda Sea.

5.1 Earthquake hits the Banda Sea.

Storms and Floods

Tropical Storms – Roundup of Tropical Storms:

Wp201528 5day

Tropical depression 28w (Melor), located approximately 177 nm southeast of Manila, Philippines, is tracking westward at 11 knots.

NewsBytes:

Swaziland – A severe hailstorm damaged hundreds of homes in the Hluti and Lavumisa areas of Swaziland on Saturday.

Philippines – As many as 700 000 people have been evacuated as Typhoon Melor (known locally as Nona) made landfall around 11 a.m. over Batag, Northern Samar. According to the National Disaster Risk Reduction and Management Council, Typhoon Melor is expected to cause flooding, landslides and storm surges of up to four metres. Typhoon Melor is expected to make a second landfall by Monday night in Sorsogon province. Melor has maximum sustained winds of 150 kph and gusts of up to 185 kph moving west at 17 kph.

South Island, New Zealand – Hail, heavy rain and several tornadoes battered parts of the South Island on Sunday. One tornado lifted a silage wagon off the ground and threw it onto a nearby tractor in Carew, near Geraldine, while hail stones the size of large pebbles had people across the region ducking for cover.

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Global Warming

Ocean acidification threatens Monterey Bay – California

Ocean acidification has been called the “evil twin” of global warming because the same carbon dioxide emissions that cause climate change also dissolve into seawater, threatening the world’s oceans. And the biologically rich Monterey Bay is more at risk than most bodies of water.

The reason is that the California Current, spanning the west coast of North America, is acidifying twice as fast as the rest of the world’s oceans. Globally, the oceans are already 30 percent more acidic than they were 200 years ago. By the end of the century, scientists say, they are expected to be 150 percent more acidic. But experts predict that Monterey Bay might reach those levels much sooner — in only 35 years.

Scientists and public officials say that human life depends on healthy oceans — which regulate climate, provide half of the world’s oxygen and supply people with food, jobs and recreational activities. Entire economies are built around oceans, which create 2.9 million jobs in the United States — a half-million of those in California.

Monterey Bay is particularly threatened from ocean acidification because of the natural process of upwelling — which brings the cold, deep water from arctic currents to the surface. That cold water is naturally more acidic than the Pacific’s surface waters.

Upwelling also churns up nutrients that draw in fish, whales and other marine life, feeding Monterey Bay’s vibrant ecosystem. So, in a cruel irony, the same phenomenon that sustains the bay also makes it more vulnerable to ocean acidification.

Volcanos

Roundup of Global Volcanic Activity

Masaya (Nicaragua): According to local press articles referring to information from INETER, the volcano’s activity is on the rise, with “lava being close to the surface”. The main crater of the volcano appears covered with debris from rockfalls from the crater walls, but visible incandescence, strong degassing sounds and small flames (from combusting gasses) jetting from between cracks on the floor, suggest that lava might be not far underneath and could again lead to the formation of a new lava lake, last observed in 1999.

Copahue (Chile/Argentina): Ash emissions ceased about a week ago and the volcano has been relatively calm at the surface since. However, a seismic swarm occurred yesterday, sign that the unrest at the volcano is not yet over. According to local press, the swarm contained 103 small quakes during 24 hours, composed by rock-fracturing volcano-tectonic events at 12 km distance from the main crater and at depths of near 6 km.