Magnitude 5+ Earthquakes – Global
5.7 Earthquake hits the South Sandwich Islands.
5.3 Earthquake hits Norfolk Island, Australia.
5.2 Earthquake hits the northern Mid-Atlantic ridge.
5.1 Earthquake hits south of Fiji.
5.1 Earthquake hits northern Xinjiang, China.
5.0 Earthquake hits Hokkaido, Japan.
Fracking in British Columbia
Fracking triggered a 4.4-magnitude earthquake in northeastern B.C. last year, making it one of world’s largest earthquakes ever triggered by the controversial process.
B.C.’s Oil and Gas Commission confirmed the cause of the earthquake in an email statement this week, saying it was “triggered by fluid injection during hydraulic fracturing.”
The 4.4-magnitude quake was felt in Fort St. John and Fort Nelson in August 2014. It was preceded by a 3.8-magnitude earthquake in late July, also caused by fracking.
B.C.’s Oil and Gas Commission said that several companies were doing hydraulic fracturing in the area at the time, and several more were disposing of fracking waste.
Hydraulic fracturing, often called fracking, is the process of injecting water, sand and chemicals at high pressure deep underground to break rock and free gas.
Tropical Storms – Roundup of Tropical Storms:
Tropical Storm Erika is located about 35 mi…55 km N of Guadeloupe and about 30 mi…45 km se of Antigua with maximum sustained winds…50 mph…85 km/h. Present movement…W or 280 degrees at 16 mph…26 km/h.
Hurricane Ignacio is located about 1205 mi…1940 km ESE of Hilo Hawaii with maximum sustained winds…85 mph…140 km/h. Present movement…WNW or 290 degrees at 13 mph…20 km/h.
Tropical Storm Kilo is located about 125 mi…200 km NE of Johnston Island and about 610 mi…985 km WSW of Barking Sands Hawaii with maximum sustained winds…50 mph…85 km/h. Present movement…WSW or 245 degrees at 1 mph…2 km/h.
Tropical Storm Jimena is located about 845 mi…1365 km SSW of the southern tip of Baja California with maximum sustained winds…40 mph…65 km/h. Present movement…WNW or 285 degrees at 15 mph…24 km/h.
North Korea – Heavy rain in North Korea killed 40 people, stranded thousands in flash floods and caused “massive” damage on the weekend after 250 mm (9.5 inches) of rain fell over the weekend. About 155mm (6 inches) fell in just three hours on Saturday. More than 11,000 people were forced from their homes or otherwise affected by the floods, which hit the northeastern city of Rajin, near the border with Russia and China, on Saturday and Sunday.
Middle East Respiratory Syndrome coronavirus (MERS-CoV) – Saudi Arabia
Between 18 and 21 August 2015, the National IHR Focal Point for the Kingdom of Saudi Arabia notified WHO of 29 additional cases of Middle East respiratory syndrome coronavirus (MERS-CoV) infection, including 6 deaths.
Twenty-four (24) of these reported cases are associated with a MERS-CoV outbreak currently occurring in a hospital in Riyadh city.
First Native Case Of Mosquito-Borne Tropical Disease Chinkungunya Confirmed In Spain
The European Centre for Disease Prevention & Control (ECDC) confirmed the first case of the tropical disease chinkungunya to be transmitted in Spain on August 21.
“This is the first chikungunya case reported from Spain without travel history to endemic areas,˝ said the ECDC report.
Roundup of Global Volcanic Activity
Shiveluch (Kamchatka): Lava extrusion into the volcano’s lava dome continues at moderate intensity. Small incandescent avalanches are sometimes visible on night-time webcam images. Steaming and weak to moderate ash emissions accompany this activity.
Manam (Papua New Guinea): Ash emissions occurred Tuesday (25th), producing a plume at 8,000 ft (2.4 km) altitude that extended 100 km to the west. (Darwin VAAC)
Raung (East Java): A few days ago, the official alert level of the volcano has been lowered to 2 (out of 4). It seems that no, or almost no eruptive activity has taken place at the volcano over the past days. What probably was the volcano’s most significant eruption in at least 100 years, is probably over.
Dukono (Halmahera): Activity remains intense. Darwin VAAC spotted ash emissions that rose 1-2 km above the volcano and drifted up to 100 km to the west.
Colima (Western Mexico): Activity seems to have decreased over the past days. Explosions have been much weaker and almost absent recently.
Cotopaxi (Ecuador): No significant changes have occurred. The volcano continues to produce near-continuous ash plumes that rise 1-2 km above the summit and drift into westerly directions. Volcanic tremor is continuous at the moment.
Tungurahua (Ecuador): Activity at the volcano increased since Tuesday (25 Aug), the volcano observatory reported. From 03:05 local time, seismic activity increased with the appearance of tremor accompanying ash emissions. Black, hence likely juvenile (from fresh magma) ash fell on Chontapamba Pillate, Bilbao and Juive Grande is recorded. Subsequently, 5 explosions were recorded starting at 05:57. The intensity of these increased progressively, the strongest occurring at 08:05.
Piton de la Fournaise (La Réunion): The eruption that began last Monday continues. Lava output is much lower now (approx 10 cubic meters / second) than in the beginning (30 cu m/s), but more or less stable. Bad weather during the past two days prevented more detailed observations. A heavy cloud of volcanic fog (SO2 droplets) encompasses most of the Enclos and parts of the southern La Réunion island.