Earthquakes

Magnitude 5+ Earthquakes – Global

5.6 Earthquake hits Reykjanes Ridge.

5.2 Earthquake hits the Dodecanese Islands-Turkish border region.

5.1 Earthquake hits the Sunda Strait, Indonesia.

5.0 Earthquake hits the Sea of Okhotsk.

Yellowstone Earthquake Swarm Continues

The ongoing earthquake swarm at Yellowstone volcano is now one of the biggest ever recorded, with over 2,300 tremors since it began in June. As of August 30, 2,357 earthquakes had been recorded. The most powerful in recent weeks was magnitude 3.3; it took place on August 21.

The most powerful in the current swarm was a magnitude 4.4, which was recorded on June 15. Most of the earthquakes were in the magnitude 0 or 1 range, with a further 181 recorded at magnitude 2 and 11 at magnitude 3. Another 53 were less than 0, meaning they were very small events that could be detected only with sensitive earthquake-monitoring instruments.

Storms and Floods

Tropical Storms – Roundup of Tropical Storms:

In the North Atlantic Ocean: Hurricane Irma is located about 1320 mi…2120 km E of the Leeward Islands with maximum sustained winds…110 mph…175 km/h. Present movement…W or 270 degrees at 14 mph…22 km/h.

In the Eastern Pacific: Tropical Storm Lidia is located about 80 mi…130 km W of Santa Rosalie Mexico and about 100 mi…160 km ESE of Punta Eugenia Mexico with maximum sustained winds…45 mph…75 km/h. Present movement…NW or 320 degrees at 12 mph…19 km/h.

In the Western Pacific: Tropical Storm 17w (Sanvu), located approximately 305 nm north-northeast of Chichi Jima, is tracking north-northeastward at 17 knots.

Tropical Storm 18w (Mawar), located approximately 183 nm east-southeast of Hong Kong, is tracking west-northwestward at 02 knots.

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Global Warming

Global warming doubles growth rates of Antarctic seabed’s marine fauna – study

Marine life on the Antarctic seabed is likely to be far more affected by global warming than previously thought, say scientists who have conducted the most sophisticated study to date of heating impacts in the species-rich environment.

Growth rates of some fauna doubled – including colonising moss animals and undersea worms – following a 1C increase in temperature, making them more dominant, pushing out other species and reducing overall levels of biodiversity, according to the study published on Thursday in Current Biology.

The researchers who conducted the nine-month experiment in the Bellingshuan Sea say this could have alarming implications for marine life across the globe as temperatures rise over the coming decades as a result of manmade greenhouse gases in the atmosphere.

Sub-zero conditions near the south pole mean there are comparatively few species on the usually frozen land, but below the ice, the relative lack of pollution, traffic and fishing has left an abundance of marine life that divers and biologists compare to coral reefs.

Twelve identical 15cm sq heat plates were set in concrete on the seabed. Four were warmed by 1C, four by 2C and four left at ambient temperature as a control.

At 1C, a species of bryozoan moss (Fenestrulina rugula) became utterly dominant on the four plates. Within two months it reduced the evenness and diversity of the species spread. The researchers also found the marine worm Romanchella perrieri grew an average 70% larger than those under ambient conditions.

At 2C, the results from different plates varied with different growth rates of different species. The researchers speculate that this may be because the higher increase in temperature had a greater shock impact.

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Wildfires

Wildfires – Montana, USA

The fires represented on the map below are all actively burning and have scorched at least 1,000 acres. There are several dozen smaller fires currently burning in Montana that are not included in this map.

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Wildfires – Oregon, USA

The Chetco Bar fire near Brookings is the largest in the state at more than 201 square miles as of Wednesday night, when the wildfire was 5 percent contained.

High Cascades Complex fires are burning in over 41 square miles inside and relatively close to Crater Lake National Park.

Umpqua North Complex fires are burning in about 39.6 square miles in the Umpqua National Forest. The fires are 21 percent contained.

The Milli fire near Sisters is burning in about 34.7 square miles. “Be ready” and “be set” notices are in place. The fire is 44 percent contained.

Elsewhere in Oregon, large blazes are burning in the Mount Jefferson Wilderness and neighboring forest acreage, the Columbia River Gorge and parts of southern and southwest Oregon.

Disease

Nigeria – Cholera

Cholera has broken out in northeast Nigeria at a camp for people displaced by the eight year conflict with Boko Haram, aid group Médecins Sans Frontières said on Thursday, bringing disease to communities already underfed and living in squalor.

About 1.8 million have abandoned their homes because of violence or food shortages, U.N. agencies say, and many of them live in camps for the displaced throughout northeast Nigeria, particularly in Maiduguri and the surrounding state of Borno.