A volcano in southwest Iceland erupted again on Tuesday, after a brief pause of eight months, spewing lava and smoke into the air. The eruption occurred in the Fagradalsfjall volcano, about 32 kilometers (20 miles) from the capital Reykjavik, and near the Keflavik Airport, the country’s main international hub.

The Icelandic Meteorological Office (IMO) said the eruption was small and did not pose a threat to aviation or public safety. However, it warned people to stay away from the site, as there may be high levels of volcanic gases and poor air quality in the vicinity. The IMO also advised people to monitor the air quality in their area and follow the instructions of the health authorities.

The eruption was preceded by a series of earthquakes that shook the Reykjanes Peninsula, where the volcano is located, for several days. The seismic activity indicated that magma was moving close to the surface, and scientists had anticipated an eruption somewhere on the peninsula.

The Fagradalsfjall volcano had previously erupted in March 2021, after nearly 800 years of dormancy. The eruption lasted for six months and attracted hundreds of thousands of visitors, who came to witness the spectacular lava flows and fountains. The eruption was considered a “tourist eruption”, as it was relatively harmless and accessible.

However, the new eruption may have a different impact on the tourism industry, which is already struggling due to the COVID-19 pandemic. Some tour operators have canceled their trips to the volcano, citing safety concerns and uncertainty. Others have resumed their tours but with stricter measures and precautions.

The eruption may also affect the air quality in the region, especially if the wind direction changes and carries the volcanic plume toward populated areas. The plume contains sulfur dioxide, carbon dioxide, and other gases that can irritate the eyes, nose, and throat, and cause respiratory problems. People with asthma, heart disease, or other chronic conditions are more vulnerable to the effects of volcanic gases.

The IMO said it will continue to monitor the eruption and provide updates on its website and social media. It also urged the public to respect nature and the environment, and not to leave any traces or litter behind when visiting the volcano.

The post Volcano in Southwest Iceland Erupts Again, Raising Concerns Over Air Quality and Tourism appeared first on Good News!.

Lightning is an atmospheric electrical discharge (spark) accompanied by thunder, usually associated with and produced by cumulonimbus clouds, but also occurring during volcanic eruptions or in dust storms.[1] From this discharge of atmospheric electricity, a leader of a bolt of lightning can travel at speeds of 220,000 km/h (140,000 mph), and can reach temperatures of about 30,000 °C (54,000 °F), hot enough to fuse silica sand into glass channels known as fulgurites, which are normally hollow and can extend as much as several meters into the ground.[2][3]

There are some 16 million lightning storms in the world every year. Lightning causes ionisation in the air through which it travels, leading to the formation of nitric oxide and ultimately, nitric acid, of benefit to plant life below.

Lightning can also occur within the ash clouds from volcanic eruptions, or can be caused by violent forest fires which generate sufficient dust to create a static charge.

How lightning initially forms is still a matter of debate. Scientists have studied root causes ranging from atmospheric perturbations (wind, humidity, friction, and atmospheric pressure) to the impact of solar wind and accumulation of charged solar particles. Ice inside a cloud is thought to be a key element in lightning development, and may cause a forcible separation of positive and negative charges within the cloud, thus assisting in the formation of lightning.

The irrational fear of lightning (and thunder) is astraphobia. The study or science of lightning is called fulminology, and someone who studies lightning is referred to as a fulminologist.

The post Lightning! appeared first on Good News!.