Earthquakes

Magnitude 5+ Earthquakes – Global

6.6 earthquake hits near the coast of Nicaragua.

5.9 earthquake hits near the coast of Nicaragua.

5.5 earthquake hits central Mongolia.

5.3 earthquake hits the Molucca Sea.

5.3 earthquake hits Chitinskaya Oblast, Russia.

5.2 earthquake hits near the coast of Nicaragua.

5.1 earthquake hits the Kermedec Islands.

Two 5.0 earthquakes hit the South Sandwich Islands.

5.0 earthquake hits offshore Bio-Bio, Chile.

5.0 earthquake hits the Kermedec Islands.

Storms and Floods

Tropical Storms – Roundup of Tropical Storms:

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In the Atlantic Ocean: Remnants of Peter are located about 260 mi…420 km nnw of San Juan Puerto Rico with maximum sustained winds…30 mph…45 km/h. Present movement…nnw or 335 degrees at 5 mph…7 km/h.

Post Tropical Cyclone Rose is located about 1300 mi…2095 km wnw of the Cabo Verde islands with maximum sustained winds…35 mph…55 km/h. Present movement…nw or 310 degrees at 10 mph…17 km/h.

Tropical Depression Eighteen is located about 1860 mi…2995 km ese of the northern Leeward islands with maximum sustained winds…35 mph…55 km/h. Present movement…w or 280 degrees at 15 mph…24 km/h.

In the Northwest Pacific Ocean: Tropical storm 21w (Dianmu), located approximately 150 nm southeast of Da Nang, Vietnam, is tracking northwestward at 13 knots.

Tropical storm 20w (Twenty), located approximately 19 nm south-southwest of Hagatna, Guam, is tracking west-northwestward at 14 knots.

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Newsbytes:

India – Days of heavy rain, rising rivers and dam releases have caused widespread flooding in the state of Odisha in eastern India, where authorities report 26 districts affected. Many parts of Odisha experienced heavy rainfall from around 13 September, brought by a Low Pressure Area over the Bay of Bengal. In a 24 hour period to 13 September, Puri recorded 343 mm of rain. The rain caused several rivers in the state to swell or break their banks. As of 19 September flooding had affected over 2.7 million people across 6,129 villages of 26 districts in Odisha.

Wildlife

Australia Loses 30% of its Koalas to Wildfires

Australia has lost 30 per cent of its koala population in the last three years due to the blazing bushfires in Victoria and New South Wales. Warning about the rapid decline in the population of koalas, the Australian Koala Foundation has said the numbers are dropping at an alarming rate.

Wildfires

Wildfires – California

The twin blazes pf the Windy and KNP Complex fires continued to threaten California’s towering sequoia trees and create new miseries for nearby residents, spewing smoke and worsening air quality across Central California on Wednesday. The two fires have burned through nearly 60,000 acres combined, officials said, with hardly any containment.

Days-long efforts to defend Sequoia National Park’s most famous trees from the 28,241-acre KNP Complex have proven mostly successful so far, with crews crediting proactive firefighting and a history of prescribed burns for preventing significant damage to the Giant Forest, including the General Sherman tree and the Four Guardsmen trees. Fire-resistant material has also been placed around the bases of some of the most famous forest inhabitants, including the General Sherman Tree, the largest in the world by volume.

Disease

Covid-19

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

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Yellow Fever – Ivory Coast

Five cases of yellow fever have been reported from Côte d’Ivoire on 13 September 2021. Yellow fever is an acute viral hemorrhagic fever. Symptoms of yellow fever (fever, chills, headache, backache, and muscle aches) develop 3-6 days after infection. About 15% of people infected with yellow fever virus will develop severe illness that can lead to liver disease, bleeding, shock, organ failure, yellowing skin (jaundice), and sometimes death.

Monkeypox – DR Congo

The World Health Organization (WHO) reported 69 additional suspected monkeypox cases in the past month in the Democratic Republic of the Congo (DRC), bringing the cumulative total since the beginning of the year to 8,849. In addition, three more deaths were recorded, bringing the monkeypox death to for 2021 to 69.

Volcanos

Roundup of Global Volcanic Activity – New Activity for the Week 15 September – 21 September 2021

La Palma – Spain : An eruption began at La Palma after about a week of intensifying seismicity that showed hypocenters becoming shallower and moving NW, and significant related inflation. During 17-18 September the PEVOLCA (Plan de Emergencias Volcánicas de Canarias) steering committee (comprised of representatives from multiple agencies, local authorities, and institutions) reviewed mitigation, evacuation, and emergency plans. Helicopter and drone overflights were conducted in areas thought to be at risk from an eruption. IGN reported that during 17-18 September seismicity decreased, though an M 2 felt by local residents was located at 100 m depth, and vertical deformation occurred near the earthquake epicenters. IGN noted that seismicity intensified during the morning of 19 September, with earthquakes located at 0-6 km depth; a M 4.2 event was recorded at 1116 and vertical deformation increased. Authorities evacuated about 50 residents with reduced mobility and their companions from Las Manchas de Abajo, Jedey, San Nicolás and El Paraíso (El Paso and Los Llanos de Aridane), El Charco (Fuencaliente), La Bombilla (Los Llanos de Aridane and Tazacorte), and El Remo and Puerto Naos (Los Llanos de Aridane). Residents in an area prone to landslides were also evacuated. Other preparations continued at the hospital, in neighborhoods, and at evacuation centers. At 1510 on 19 September an eruption began in the area of Cabeza de Vaca, in the municipality of El Paso. Observers near the eruption site observed a large explosion that ejected material and produced a gas-and-ash plume; volcanic tremor was recorded by the seismic network. Two 200-m-long fissures aligned N-S opened about 200 m apart. INVOLCAN scientists observed seven vents along the fissures during the initial stage of the eruption. Multiple tall lava fountains fed flows downslope to the W, igniting forest fires. Photos and video posted by IGN showed multiple pulsating fountains fanning out from parts of the fissure. Ash plumes rose about 1.5 km and gas plumes rose 3 km and drifted ESE. The PEVOLCA steering committee briefly raised the Alert Level to Orange, and then to Red (the highest level on a four-color scale) by 1700 for high-risk municipalities directly affected by the eruption. About 5,500 people evacuated with no injuries reported, and authorities recommended that residents stay at least 2 km from the vents. The La Palma airport briefly closed, livestock were evacuated, and education centers were closed along with sections of multiple highways. Later that day INVOLCAN scientists who measured an area of the flows determined an average flow rate of 700 m per hour and temperatures around 1,075 degrees Celsius. By the next day a main cone had formed. The sulfur dioxide gas emission rate was 6,000-11,500 tons per day during 19-20 September. Satellite data showed a plume of sulfur dioxide drifting 475 km SE and reaching the coastline of Africa by 20 September. A map produced on 20 September by IGN in partnership with Copernicus Emergency Management Service (EMS) showed that the main part of the lava flow had traveled more than 3 km W and another branch extended about 1.5 km WSW. The flows had covered about 1 square kilometer and destroyed an estimated 166 buildings. A news article noted that activity was concentrated at four main vents, the last (and ninth) of which opened at 1956 on 20 September about 900 m from the main vents. Strong lava fountaining continued during 20-21 September and ash fell in the vicinity of the vents. Ash plumes rose 2.4-4.6 km (8,000-15,000 ft) a.s.l. and drifted as far as 55 km SW and S according to the Toulouse VAAC. Sulfur dioxide gas plumes drifted W and E at an altitude of 3 km (10,000 ft) a.s.l. By 0814 on 21 September an updated Copernicus EMS map showed that 350 homes had been covered by lava and the flow field had expanded to 1.54 square kilometers. According to a news report lava up to 12 m thick was advancing at a rate of 200 m per hour. A few hundred more residents evacuated as lava advanced towards Tacande; bringing the number of evacuees to about 5,700. The S lava branch was advancing slowly, at a rate of 2 m per hour. Later that day INVOLCAN stated that increased volcanic tremor amplitude reflected greater intensity of Strombolian explosions at the vents.

Semisopochnoi – Aleutian Islands (USA) : AVO reported that eruptive activity at Semisopochnoi’s North Cerberus crater continued during 15-21 September. Weather clouds obscured views of the volcano on most days. Several small daily explosions were recorded by local seismic stations; ash plumes were not visible in satellite images suggesting that they remained below 3 km (10,000 ft) a.s.l. and did not rise above the cloud deck. Overnight during 18-19 September small, discontinuous, low-level ash plumes were visible drifting 100 km SE. Ash emissions increased in frequency and intensity on 19 September. Ash clouds rose as high as 4.6 km (15,000 ft) a.s.l. and continued to drift 100 km SE. Sulfur dioxide emissions increased in the afternoon. AVO raised the Aviation Color Code to Red and the Volcano Alert Level to Warning at 2158. Explosions continued overnight and the next day, and ash plumes rose up to 4.6 km a.s.l. Plumes drifted 100 km NW. At 2012 on 20 September AVO lowered the Aviation Color Code to Orange noting the frequency of discrete explosions had decreased to a rate of about one per hour, though ash plumes from these events were still rising to 4.6 km a.s.l. and drifting NW. Sulfur dioxide plumes drifted N during 20-21 September.