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Volcano Erupts on Western Japanese Island of Kyushu

A remote camera image shows an eruption of Sakurajima in Tarumizu, Kumamoto prefecture, western Japan, July 24, 2022. (Kyodo via REUTERS)
A remote camera image shows an eruption of Sakurajima in Tarumizu, Kumamoto prefecture, western Japan, July 24, 2022. (Kyodo via REUTERS)
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Volcano Erupts on Western Japanese Island of Kyushu

A remote camera image shows an eruption of Sakurajima in Tarumizu, Kumamoto prefecture, western Japan, July 24, 2022. (Kyodo via REUTERS)
A remote camera image shows an eruption of Sakurajima in Tarumizu, Kumamoto prefecture, western Japan, July 24, 2022. (Kyodo via REUTERS)

A volcano on Japan's major western island of Kyushu erupted on Sunday evening, sending black smoke billowing high into the air, but there were no immediate reports of any damage or injuries, and authorities said they did not expect a major eruption.

The volcano, which is called Sakurajima and is located on the southern tip of Kyushu near the city of Kagoshima, erupted at about 8:05 p.m. (1105 GMT), the Japanese Meteorological Agency (JMA) said, according to Reuters.

Volcanic stones rained down at a distance of 2.5 km (1.5 miles) from the volcano, a JMA official said. The eruption alert level has been raised to 5, the highest, with some areas advised to evacuate, he added, but no large eruption was expected.

Sakurajima is one of Japan's most active volcanoes and eruptions of varying levels take place on a regular basis. In 2019 it spewed ash 5.5 km (3.4 miles) high.

There were no immediate reports of damage from Sunday's eruption, deputy chief cabinet secretary Yoshihiko Isozaki told a news conference, as government officials sought more information on the situation.

Nuclear regulators said there were no irregularities detected at the Sendai atomic plant, which lies about 50 km (31 miles) from the volcano.

Video footage showed what appeared to be a red mass flowing down one side of the volcano, with red projectiles shooting upwards.

The JMA said rain was expected in some areas near the volcano on Monday but not the kind of heavy rain that could cause mudslides following the eruption.

Most of the city of Kagoshima is across the bay from the volcano but several residential areas within about 3 km (1.9 miles) of the crater may be ordered to evacuate depending on the situation, NHK said.

It later reported that 51 people in the vicinity were being evacuated.

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Urban Mosquito Sparks Malaria Surge in East Africa

Bed nets -- up to now the prime weapon against malaria -- may be much less effective against the urban mosquito. YASUYOSHI CHIBA / AFP/File
Bed nets -- up to now the prime weapon against malaria -- may be much less effective against the urban mosquito. YASUYOSHI CHIBA / AFP/File
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Urban Mosquito Sparks Malaria Surge in East Africa

Bed nets -- up to now the prime weapon against malaria -- may be much less effective against the urban mosquito. YASUYOSHI CHIBA / AFP/File
Bed nets -- up to now the prime weapon against malaria -- may be much less effective against the urban mosquito. YASUYOSHI CHIBA / AFP/File

The spread of a mosquito in East Africa that thrives in urban areas and is immune to insecticide is fueling a surge in malaria that could reverse decades of progress against the disease, experts say.
Africa accounted for about 95 percent of the 249 million malaria cases and 608,000 deaths worldwide in 2022, according to the most recent data from the World Health Organization (WHO), which said children under five accounted for 80 percent of deaths in the region, AFP reported.
But the emergence of an invasive species of mosquito on the continent could massively increase those numbers.
Anopheles stephensi is native to parts of South Asia and the Middle East but was spotted for the first time in the tiny Horn of Africa state of Djibouti in 2012.
Djibouti had all but eradicated malaria only to see it make a slow but steady return over the following years, hitting more than 70,000 cases in 2020.
Then stephensi arrived in neighboring Ethiopia and WHO says it is key to an "unprecedented surge", from 4.1 million malaria cases and 527 deaths last year to 7.3 million cases and 1,157 deaths between January 1 and October 20, 2024.
Unlike other species which are seasonal and prefer rural areas, stephensi thrives year-round in urban settings, breeding in man-made water storage tanks, roof gutters or even air conditioning units.
It appears to be highly resistant to insecticides, and bites earlier in the evening than other carriers. That means bed nets -- up to now the prime weapon against malaria -- may be much less effective.
"The invasion and spread of Anopheles stephensi has the potential to change the malaria landscape in Africa and reverse decades of progress we've made towards malaria control," Meera Venkatesan, malaria division chief for USAID, told AFP.
'More research is needed'
The fear is that stephensi will infest dense cities like Mombasa on Kenya's Indian Ocean coast and Sudan's capital Khartoum, with one 2020 study warning it could eventually reach 126 million city-dwellers across Africa.
Only last month, Egypt was declared malaria-free by WHO after a century-long battle against the disease -- a status that could be threatened by stephensi's arrival.
Much remains unknown, however.
Stephensi was confirmed as present in Kenya in late 2022, but has so far stayed in hotter, dryer areas without reaching the high-altitude capital, Nairobi.
"We don't yet fully understand the biology and behavior of this mosquito," Charles Mbogo, president of the Pan-African Mosquito Control Association, told AFP.
"Possibly it is climate-driven and requires high temperatures, but much more research is needed."
He called for increased funding for capturing and testing mosquitos, and for educating the public on prevention measures such as covering water receptacles.
Multiplying threats
The spread of stephensi could dovetail with other worrying trends, including increased evidence of drug resistant malaria recorded in Uganda, Rwanda, Tanzania and Eritrea.
"The arrival of resistance is imminent," said Dorothy Achu, WHO's head of tropical and vector-borne diseases in Africa.
WHO is working with countries to diversify treatment programs to delay resistance, she said.
A new malaria variant is also evading tests used to diagnose the disease.
"The increased transmission that stephensi is driving could potentially help accelerate the spread of other threats, such as drug resistance or another mutation in the parasite that leads it to be less detectable by our most widely-used diagnostics," said Venkatesan at USAID.
Another added challenge is the lack of coordination between African governments.
Achu said WHO is working on "a more continental approach".
But Mbogo in Kenya said "more political will" was needed.