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Tue, 26 Oct 2021
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Mysterious tremor rattles windows in South Australia - Geoscience says it wasn't an earthquake

Adelaide, Australia
People across South Australia have reported being awoken by mysterious tremors that rattled windows and sent pets into a frenzy - but authorities say there was no earthquake.

The tremors and loud rumbles were heard between 2am and 2.30am on Saturday, prompting people to turn to Facebook and Twitter to look for answers and share what they felt and heard.

The Geoscience Australia website initially reported a 1.4 magnitude quake around Mount Compass but the notice was removed from the website after further investigations.

The agency subsequently advised instead that the event was caused by thunder and that no quake had been detected.


Attention

'Potentially catastrophic' Hurricane Irma will likely impact Florida

hurricane Irma 9.5.17
© RAMMB / CIRA @ CSU
Hurricane Irma is continuing to strengthen as it moves through the Atlantic as a daunting Category 5 storm, now with 185 mph winds.

Irma has become one of the most powerful storms in history with the National Hurricane Center calling it "potentially catastrophic." It's tied with Hurricane Wilma as the second strongest storm that's formed in the Atlantic Ocean on record, both just behind Hurricane Allen in 1980, which had wind speeds of 190 mph.

Gov. Rick Scott activated the Florida Air and Army National Guard Tuesday morning, with 100 members called up immediately and all 7,000 members told to report for duty Friday morning. He also suspended all tolls starting at 5 p.m. Tuesday.

The governor asked President Trump to declare a pre-landfall emergency for Florida, which would free up federal funding to help the state defend itself against the huge storm. Among possible emergency measures would be shoring up beach dunes, building emergency berms and planning for potential evacuations, according to a news release from the governor's office.

"Our state emergency management officials are working with our federal and local partners to prepare for any potential impacts from this dangerous storm," Scott said. "And it is crucial that we have access to every available resource to protect our families and communities."

Fire

Dramatic images from record-setting La Tune wildfire north of Los Angeles

La Tuna wildfire los angeles
© Adriene Biondo/Instagram
Fire encroaches just above the Safari Inn in Burbank, CA.
On Sunday California Governor Jerry Brown declared a state of emergency for Los Angeles County as the La Tuna wildfire encroached on L.A. and burned eerily on the skyline just north of downtown, keeping nervous residents on the alert as homes and business were threatened. What is now being reported as the largest brush fire in Los Angeles history began in Burbank on Friday, but the cause is still under investigation.

Over the weekend a mandatory evacuation order was issued for more than 700 homes in Los Angeles, Burbank and Glendale - the order has since been lifted as firefighters made gains after brief showers hit the area. La Tuna has already burned over 7000 acres and destroyed multiple homes.

The fire's rapid spread is being attributed to an unprecedented heat wave that's hit California along with high winds. On Friday for example, San Francisco reached 106 degrees Fahrenheit at the end of a summer that climatologists are calling one of the hottest on record. Over the weekend the heat forced the Bay Area Rapid Transit system to order its trains to slow down on rails exposed to the sun as slight heat-induced expansion in the metal track could cause slight shifts and possible derailment.

Comment: Further reading:


Attention

Hurricane expert Maue: Extrapolating scale, Hurricane Irma could be a "Category 6"

hurricane irma

Dr. Ryan Maue said this morning:
Hurricane #Irma is still intensifying. Now up to 155-knots (180 mph) Extrapolating Saffir-Simpson scale, 158-knots would be Category 6.
saffir-simpson scale hurricane classification

Cloud Lightning

Hurricane Irma intensifies, now Category 4 storm threatening Cuba and Florida

hurricane Irma 9.5.17
© RAMMB / CIRA @ CSU
Dangerous Hurricane Irma was intensifying as it approached the northern Lesser Antilles Islands on Monday morning, and island residents in the path of Irma need to rush preparations to completion as the storm heads west-southwest at 14 mph. A NOAA hurricane hunter aircraft in the storm found that Irma's central pressure was steadily dropping Monday morning, reaching 944 mb at 11 am EDT. Irma's top sustained winds are estimated at 120 mph, and winds may not yet have fully responded to this pressure drop. Update: Based on Hurricane Hunter measurements, NHC raised Irma's top sustained winds at 5:00 pm EDT to 130 mph, making it a Category 4 storm. Irma is expected to be a major Category 4 hurricane when it passes very close to the northern Lesser Antilles Islands on Tuesday, near Puerto Rico and the Virgin Islands on Wednesday, and the Turks and Caicos Islands and Hispaniola on Thursday. As of 5 pm EDT Monday, Hurricane Warnings are in effect for the northern Leeward Islands, and Hurricane Watches are up for the U.S. and British Virgin Islands and Puerto Rico.

Tropical storm-force winds are expected to begin affecting the east coast of Florida and the Florida Keys on Friday night (Figure 1 below). An evacuation decision for the Florida Keys may have to come as early as Tuesday, since the Keys require 3+ days to evacuate. As of 5 pm EDT, far southeast Florida, including Miami, was in the 5-day cone of uncertainty for Irma.

Cloud Lightning

Huge storm system quickly rolls through Santa Barbara, California

Santa Barbara had a microburst Sunday, bringing unexpectedly high winds and heavy rain

Santa Barbara had a microburst Sunday, bringing unexpectedly high winds and heavy rain
Microburst overturned boats, toppled power lines

A quick-hitting storm system rolled through Santa Barbara overturning boats, leaving flooded roadways and power lines knocked down.

Just before 3 p.m., a violent weather event rolled through Santa Barbara with massive amounts of rain and wind.

The storm is believed to be a microburst, a sudden localized and powerful air current. Some areas in Santa Barbara were left unscathed with the majority of damage coming to the Santa Barbara Harbor and lower State Street.

Trees were knocked over near lower State Street and U.S. Highway 101 was at a crawl as debris slowed traffic. Several downtown area visitors took shelter inside nearby businesses.


Fire

At least 74 wildfires rage in 8 Western states; over a million acres burnt

wildfires
At least 74 wildfires are burning in eight Western states and consumed more than a million acres combined. Jamie Yuccas reports.


Attention

La Cumbre volcano erupts in the Galapagos Islands

La Cumbre volcano

La Cumbre volcano erupts
Shortly after noon on September 4, 2017, crew on Lindblad Expeditions/National Geographic ship Endeavor II observed a volcanic eruption at Fernandina Island in the Galapagos of Ecuador. The National Park of Galapagos was immediately notified.

It was confirmed as a new eruptive phase of Fernandina's La Cumbre volcano.

After eight years of relative calm, this volcano began generating a column of water vapor and magmatic gases that were about four kilometers high.

By early evening, a volcanic ash advisory was reported.

Attention

Beached Gray's whale loses its beak from illegal chainsaw removal at Greymouth, New Zealand

A Gray's beaked whale that washed up dead on a Greymouth beach had its beak illegally removed.
© DEPARTMENT OF CONSERVATION
A Gray's beaked whale that washed up dead on a Greymouth beach had its beak illegally removed.
The Department of Conservation (DOC) is appealing for information after a 5-metre-long Gray's beaked whale had its beak sawed off.

The dead whale washed up on a Greymouth, West Coast beach, a DOC statement said.

It was believed the beak was illegally removed with a chainsaw on Saturday afternoon.

It was an offence under the Marine Mammals Protection Act 1978 to take whalebone or any other part of a marine mammal without a permit.

DOC ranger Glen Newton said dead, rotting whales could carry diseases that contaminated skin and clothing.

Cloud Lightning

Two struck dead by lightning bolt in Tamil Nadu, India

Lightning
Two persons were killed and another person was injured when lightning struck them at Puliyankudi in Mudukulathur block in the district on Sunday.

The victims, R. Dhanasekaran (33), L. Thirunavukarasu (26) and P. Nagaraj (45), all hailing from Puliyankudi, took shelter under a tamarind tree after it started raining when the lightning struck them, police said.

Dhanasekaran, who was working abroad and returned to the village recently, and Thirunavukarasu, who was employed at a petrol pumping station at Abiramam, died on the spot, the police said.

Nagaraj, who suffered injuries, was admitted to the government headquarters hospital here after given first aid at the local government hospital. He was working as a clerk in a primary agriculture cooperative credit society, the police said.

Mudukulathur police have registered a case under Section 174 of the Cr PC.