Earthquakes

Magnitude 5+ Earthquakes – Global

6.2 earthquake hits Tarapaca, Chile.

5.2 earthquake hits eastern New Guinea, Papua New Guinea.

5.0 earthquake hits Crete.

Storms and Floods

Tropical Storms – Roundup of Tropical Storms:

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In the Atlantic Ocean: Tropical Storm Rene is located about 985 mi…1585 km wnw of the Cabo Verde islands with maximum sustained winds…45 mph…75 km/h. Present movement…wnw or 290 degrees at 10 mph…17 km/h.

Tropical Storm Paulette is located about 810 mi…1305 km ene of the northern Leeward islands and about 1020 mi…1645 km se of Bermuda with maximum sustained winds…65 mph…100 km/h. Present movement…wnw or 300 degrees at 10 mph…17 km/h.

NewsBytes:

West Africa – The flood situation has worsened in the West African countries of Niger and Burkina Faso. More flooding has affected parts of Niger, where almost 330,000 people have been affected by flooding since July. Meanwhile the government in neighbouring Burkina Faso the number of fatalities has increased to 13. On 09 September the government declared a state of emergency in response to flooding which has affected the country since late August.

Wildlife

Wildlife Populations Plummet

Global animal, bird and fish populations have plummeted more than two-thirds in less than 50 years due to rampant over-consumption, experts said Thursday in a stark warning to save nature in order to save ourselves.

Human activity has severely degraded three quarters of all land and 40 percent of Earth’s oceans, and our quickening destruction of nature is likely to have untold consequences on our health and livelihoods.

The Living Planet Index, which tracks more than 4,000 species of vertebrates, warned that increasing deforestation and agricultural expansion were the key drivers behind a 68 percent average decline in populations between 1970 and 2016.

It warned that continued natural habitat loss increased the risk of future pandemics as humans expand their presence into ever closer contact with wild animals.

The last half-decade has seen unprecedented economic growth underpinned by an explosion in global consumption of natural resources.

Whereas until 1970, humanity’s ecological footprint was smaller than the Earth’s capacity to regenerate resources, the WWF now calculates we are over using the planet’s capacity by more than half.

While aided by factors such as invasive species and pollution, the biggest single driver of species lost is land-use changes: normally, industry converting forests or grasslands into farms.

This takes an immense toll on wild species, who lose their homes.

But it also requires unsustainable levels of resources to uphold: one third of all land mass and three quarters of all freshwater are now dedicated to producing food.

The picture is equally dire in the ocean, where 75 percent of fish stocks are over exploited.

And while wildlife is declining rapidly, species are disappearing faster in some places than others.

The index showed that the tropical regions of Central and South America had seen a 94 percent fall in species since 1970.

Singing Dogs

A rare species of dog that can sing, or more accurately yodel, has been rediscovered in the wild in the remote highlands of the Indonesian part of New Guinea.

The howls of the canines have been compared to the calls of humpback whales. There are about 200 captive descendants of the eight dogs that were gathered in the 1970s, but they are now seriously inbred.

While none have been seen in the wild for half a century, a new expedition returned to the capture site and found 15 of the wild dogs there are genetically similar enough to their captive cousins to provide them fresh genes.

EWCOLOR

Environment

Arctic Polluters

An increasing number of polluting ships are now sailing across the Siberian coastal stretch of the Arctic Ocean because of the more open waters that have resulted from record melting sea ice.

An analysis by Reuters found that traffic through the icy waters’ busiest routes along the coast of Siberia increased 58% between 2016 and 2019. Those ships are carrying iron ore, oil, liquified natural gas and other fuels. Reuters says that the COVID pandemic has not slowed the trend, with 935 voyages being documented in the first half of 2020, compared with 855 in the same period last year.

Environment

Global Temperature Extremes

The week’s hottest temperature was 125 degrees Fahrenheit (51.7 degrees Celsius) in Death Valley, California.

The week’s coldest temperature was minus 102.0 degrees Fahrenheit (minus 74.4 degrees Celsius) at Vostok, Antarctica.

Temperatures were tabulated from the more than 10,000 worldwide synoptic weather stations. The United Nations World Meteorological Organization sets the standards for weather observations, and provides a global telecommunications circuit for data distribution.

Disease

COVID-19

The countries with the 10 greatest number of Covid-19 cases:

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Chikungunya – Thailand

Officials with Thailand’s Epidemiology department reported an additional 685 chikungunya cases in the past week. This brings the country’s total to 8,363 cases through Sept 5 from 70 of the 77 Thai provinces. No deaths have been reported.

Volcanos

Roundup of Global Volcanic Activity – Ongoing Activity for the Week 2 September 2020 – 8 September 2020

Aira | Kyushu (Japan) : JMA reported that 12 eruptive events at Minamidake Crater (at Aira Caldera’s Sakurajima volcano) during 31 August-7 September produced plumes that rose as high as 1.7 km above the crater rim. The daily sulfur dioxide emission rate was 1,400 tons/day on 31 August. The Alert Level remained at 3 (on a 5-level scale).

Cleveland | Chuginadak Island (USA) : AVO lowered both the Volcano Alert Level and the Aviation Color Code for Cleveland to Unassigned on 3 September, noting a lack of unrest over the past few months. A short-lived explosion was recorded on 1 June; satellite images showed no signs of elevated temperatures nor surficial changes in the summit crater since then.

Copahue | Central Chile-Argentina border : SERNAGEOMIN reported continuing activity at Copahue during 16-31 August. Webcams recorded gas-and-ash plumes rising as high as 1.7 km, sometimes associated with nighttime crater incandescence. The plumes drifted in multiple directions as far as 4.3 km N, 9 km NE, 8 km E, 4 km SE, 4 km SW, 9 km W, and 4.4 km NW. Sulfur dioxide emissions were high, averaging 2,641 tonnes per day (ranging from 2,029 to 3,253 tonnes per day), with a high value of 4,627 on 27 August. The Alert Level was remained at Yellow (the second lowest level on a four-color scale). ONEMI maintained the Yellow Alert (the middle level on a three-color scale) for residents of the Alto Biobío municipality and access to an area within 1 km of El Agrio Crater was restricted to the public.

Dukono | Halmahera (Indonesia) : Based on satellite and wind model data, and information from PVMBG, the Darwin VAAC reported that during 2-8 September ash plumes from Dukono rose 2.1 km (7,000 ft) a.s.l. and drifted NW, W, and SW. The Alert Level remained at 2 (on a scale of 1-4), and the public was warned to remain outside of the 2-km exclusion zone.

Ebeko | Paramushir Island (Russia) : Volcanologists in Severo-Kurilsk (Paramushir Island), about 7 km E of Ebeko, observed explosions during 27-28 and 30-31 August, and 1-2 September. Ash plumes rose up to 3 km (10,000 ft) a.s.l. and drifted N, NE, SE, and S. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Karymsky | Eastern Kamchatka (Russia) : KVERT reported that explosions at Karymsky were last recorded on 29 July. A thermal anomaly was weak for most of August and undetectable after 21 August. The Aviation Color Code was lowered to Green (the lowest level on a four-color scale) on 3 September.

Makushin | Fox Islands (USA) : Seismicity at Makushin returned to background levels after steadily declining for almost three months following a sequence of earthquakes about 10 km E of the summit at a depth of 8 km that had started on 15 June. AVO lowered the Aviation Color Code and Volcano Alert Level remained at Green and Normal, respectively, on 8 September.

Rincon de la Vieja | Costa Rica : OVSICORI-UNA reported that on 3 September geologists observed Rincón de la Vieja from the summit and noted that the acid lake in the main crater had a low water level, was actively convecting, and exhibited strong gas emissions. The temperature of the lake was 60 degrees Celsius. Vigorous fumaroles on the inner W wall of the crater were 120 degrees Celsius. At 0559 on 8 September an eruption produced a plume that rose 500 m above the crater rim.

Sangay | Ecuador : IG reported a high level of activity at Sangay during 2-8 September. Seismicity was characterized by high levels of explosions, harmonic tremor, long-period earthquakes, and signals indicating emissions. Weather clouds often prevented visual observations of the volcano, but the Washington VAAC and IG webcams recorded daily ash plumes that rose 600-1,500 m above the summit and drifted NW, W, and S. Lahars were periodically generated by heavy rains. On 2 September pyroclastic flows descended the SE flank.

Semeru | Eastern Java (Indonesia) : PVMBG reported that at 0541 on 8 September an ash plume from Semeru rose 400 m above the summit and drifted S. The Alert Level remained at 2 (on a scale of 1-4).

Sheveluch | Central Kamchatka (Russia) : KVERT reported that a thermal anomaly over Sheveluch was identified in satellite images daily during 28 August-4 September. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Suwanosejima | Ryukyu Islands (Japan) : JMA reported periodic nighttime incandescence at Suwanosejima’s Ontake Crater during 28 August-4 September, and there was a total of 11 eruptions. An eruption at 0234 on 4 September generated a grayish white ash plume that rose 1.3 km above the crater rim before entering weather clouds. The Alert Level remained at 2 (on a 5-level scale).