Earthquakes

Magnitude 5+ Earthquakes – Global

6.6 earthquake hits offshore O’Higgins, Chile.

5.8 earthquake hits offshore O’Higgins, Chile.

5.4 earthquake hits offshore O’Higgins, Chile.

5.4 earthquake hits the southeast Indian rise.

5.0 earthquake hits Mindanao in the Philippines.

5.0 earthquake hits Minahasa, Sulawesi, Indonesia.

5.0 earthquake hits the Kermedec Islands.

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Storms and Floods

Tropical Storms – Roundup of Tropical Storms:

In the Eastern Pacific Ocean: Tropical Storm Flossie is located about 1240 mi…2000 km e of Hilo Hawaii with maximum sustained winds…70 mph…110 km/h. Present movement…wnw or 285 degrees at 18 mph…30 km/h.

In the Central Pacific Ocean: Tropical Storm Erick is located about 230 mi…375 km ssw of Hilo Hawaii and about 365 mi…590 km sse of Honolulu Hawaii with maximum sustained winds…65 mph…100 km/h. Present movement…wnw or 290 degrees at 13 mph…20 km/h.

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In the Western Pacific Ocean: Tropical Storm Wipha is located approximately 170 nm east of Hanoi, Vietnam, is tracking northwestward at 04 knots.

Tropical Storm Francisco is located approximately 631 nm east-southeast of Iwo To, Japan and is tracking northwestward at 12 knots.

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NewsBytes:

England – Hundreds of homes were evacuated in a Derbyshire town on Thursday when a dam threatened to burst after being damaged during extreme rainfall. Around 1,400 people in 400 houses in Whaley Bridge were told to leave their properties with just minutes’ notice due to “an unprecedented, fast-moving, emergency situation” caused by heavy downpours. Toddbrook reservoir – which contains around 1.3m tonnes of water – suffered extensive damage during the flooding on Thursday, with images showing a huge hole in the dam wall.

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Global Warming

Greenland Melt

A staggering 217 billion tons (197 billion metric tons) of meltwater flowed off of Greenland’s ice sheet into the Atlantic Ocean this July. The worst day of melting was July 31, when 11 billion tons (10 billion metric tons) of melted ice poured into the ocean.

This massive thaw represents some of the worst melting since 2012, according to The Washington Post. That year, 97% of the Greenland ice sheet experienced melting. This year, so far, 56% of the ice sheet has melted, but temperatures — 15 to 20 degrees Fahrenheit above average — have been higher than during the 2012 heat wave. All told, this July’s melt alone was enough to raise global average sea levels by 0.02 inches (0.5 millimeters).

Wildlife

Tiger Population

A new census of India’s wild tiger population shows the number of the big cats has increased by more than 30 percent over the past four years thanks to conservation efforts.

By using a network of 26,000 remote motion-sensor cameras across known tiger habitats, wildlife experts determined there are now 2,967 tigers in the wild, compared to 2,226 in 2015. Neighboring Bangladesh also saw its big cat population jump from 106 to 114 over the period.

It’s estimated that more than 100,000 tigers roamed the South Asia region in 1900.

Nature – Images

Interesting Images

Sea Lion Nearly Swallowed

While humpbacks were lunge feeding on a school of anchovies near Monterey Bay, California, a sea lion apparently didn’t jump out of the way fast enough and got trapped inside the whales mouth! At some point the sea lion escaped and the whale seemed fine too as it continued to feed, but it must have been a strange experience for both parties.

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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 104.0 degrees Fahrenheit (minus 75.6 degrees Celsius) at Russia’s Vostok base, 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.

Volcanos

Global Volcanic Activity – Ongoing Activity for the week of 24 July – 30 July 2019

Aira | Kyushu (Japan) : JMA reported that on 22 July an explosion at Minamidake crater (at Aira Caldera’s Sakurajima volcano) generated an ash plume that rose to 1.5 km above the crater rim. At 1725 and 1754 on 28 July ash plumes rose 3.5-3.8 km above the crater rim and causing ashfall in areas N of the crater including Kirishima (20 km NE), Shimizu Town, and parts of the Kumamoto Prefecture. The Alert Level remained at 3 (on a 5-level scale).

Asosan | Kyushu (Japan) : JMA reported that at 0757 on 26 July a small eruption at Asosan’s Nakadake Crater generated grayish-white ash plumes that rose 1.6 km above the crater rim and drifted NW. Webcam images showed incandescent material in the vent. Minor ashfall was reported in areas downwind including Minamioguni-cho (Kumamoto Prefecture, N) and Kuze-cho (Oita Prefecture, NE). Plumes continued to be emitted during 0900-1300, rising to 400 m. Activity increased at 0442 on 28 July and remained elevated at least through 1500 on 29 July. Grayish-white plumes rose as high as 1.2 km above the crater rim and drifted NE and N. Sulfur dioxide emissions were very high on 29 July, at 4,300 tons per day. The Alert Level remained at 2 (on a scale of 1-5).

Dukono | Halmahera (Indonesia) : Based on satellite and wind model data, and notices from PVMBG, the Darwin VAAC reported that during 24-30 July ash plumes from Dukono rose to altitudes of 1.5-2.1 km (5,000-7,000 ft) a.s.l. and drifted mainly W, N, NE, and E. 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 20-26 July that sent ash plumes up to 4 km (13,100 ft) a.s.l. The plumes drifted in multiple directions. A thermal anomaly was visible in satellite images on 18, 20, and 25 July. The Aviation colour Code remained at Orange (the second highest level on a four-colour scale).

Karymsky | Eastern Kamchatka (Russia) : KVERT reported that a thermal anomaly over Karymsky was visible in satellite images during 18-19 and 25 July. An ash plume drifted 134 km SE on 25 July. The Aviation colour Code remained at Orange (the second highest level on a four-colour scale).

Klyuchevskoy | Central Kamchatka (Russia) : KVERT reported that a weak thermal anomaly over Klyuchevskoy was visible in satellite images during 18-19 July. The Aviation colour Code remained at Orange (the second highest level on a four-colour scale).

Merapi | Central Java (Indonesia) : PVMBG reported that during 22-28 July the lava-dome volume at Merapi did not change and was an estimated 475,000 cubic meters, based on analyses of drone images. Extruded lava fell into the upper parts of the SE-flank, generating two block-and-ash flows that traveled 1,000 m and 950 m down the Gendol drainage on 24 and 27 July, respectively. Diffuse white plumes rose as high as 50 m above the summit on some days. The Alert Level remained at 2 (on a scale of 1-4), and residents were warned to remain outside of the 3-km exclusion zone.

Nevado del Ruiz | Colombia : Servicio Geológico Colombiano’s (SGC) Observatorio Vulcanológico y Sismológico de Manizales reported that during 23-30 July small plumes of gas and ash rose from Nevado del Ruiz based on webcam images. A weak thermal anomaly was identified in satellite data. The Alert Level remained at 3 (Yellow; the second lowest level on a four-colour scale).

Sangeang Api | Indonesia : The Darwin VAAC reported that during 24-30 July multiple ash plumes from Sangeang Api were identified by pilots and in satellite images rising to 2.4-3 km (8,000-10,000 ft) a.s.l. and quickly dissipating N, NW, W, and SW. The Alert Level remained at 2 (on a scale of 1-4).

Sheveluch | Central Kamchatka (Russia) : KVERT reported that a thermal anomaly over Sheveluch’s lava dome was identified daily in satellite images during 19-26 July. The Aviation colour Code remained at Orange (the second highest level on a four-colour scale).

Tengger Caldera | Eastern Java (Indonesia) : The Darwin VAAC reported that on 28 July ash plumes from Tengger Caldera’s Bromo cone rose to an altitude of 2.4 km (8,000 ft) a.s.l. and drifted NW based on webcam images, satellite data, and weather models. The Alert Level remained at 2 (on a scale of 1-4), and visitors were warned to stay outside of a 1-km radius of the crater.

Tengger Caldera | Eastern Java (Indonesia) : The Darwin VAAC reported that on 28 July ash plumes from Tengger Caldera’s Bromo cone rose to an altitude of 2.4 km (8,000 ft) a.s.l. and drifted NW based on webcam images, satellite data, and weather models. The Alert Level remained at 2 (on a scale of 1-4), and visitors were warned to stay outside of a 1-km radius of the crater.

Turrialba | Costa Rica : OVSICORI-UNA reported that an eruptive event at Turrialba was detected at 1441 on 28 July, though inclement weather conditions prevented visual confirmation. Ashfall was reported in La Picada (N) and El Retiro farms.

Villarrica | Chile : POVI reported that during 24-25 July multiple Strombolian explosions in Villarrica’s summit crater were detected in seismic data and ejected incandescent material onto the flanks.