Earthquakes

Magnitude 5+ Earthquakes – Global

6.2 earthquake hits the Moro Gulf, Mindanao, Philippines.

5.3 earthquake hits the Banda Sea.

5.2 earthquake hits the Bali Sea.

5.1 earthquake hit south of Fiji.

5.1 earthquake hits Kepulauan Talaud, Indonesia.

5.0 earthquake hits Alaska.

5.0 earthquake hits the northern East Pacific rise.

5.0 earthquake hits Salta, Argentina.

Storms and Floods

Tropical Storms – Roundup of Tropical Storms:

In the Eastern Pacific Ocean: Tropical depression 01e (One), located approximately 1357 nm south-southwest of San Diego, is tracking westward at 10 knots.

NewsBytes:

Jamaica – Rivers overflow after days of heavy rain lashed the Caribbean island nation, washing away roads and bridges. As is usually the case when flooding hits the country, there have been numerous mudslides. Dozens of roads have been blocked and a number of bridges have been washed away. The storm system has moved on to Cuba.

Tasmania – Wild weather caused flash flooding in Hobart on Friday morning, with cars swept away and emergency crews responding to hundreds of calls for help. Police said the city centre was hit hard, forcing the closure of many roads and, with more heavy rain expected on Friday, motorists were urged to stay off roads. Streets turned into fast-flowing rivers, with water surging inside homes and businesses.

Washington State, USA – Canadian runoff is flooding Northeastern Washington rivers. It’s a record year for flooding in northeastern Washington as spring runoff makes its way into the region’s rivers. At least eight rivers are at or above flood stage. Nearly all of them cross the U.S.-Canada border. British Columbia saw a near record snow year in the mountains this year and now that temperatures are warming, the runoff from snowmelt is making its way into rivers and lakes.

Wildlife

War Extinctions

A new study shows armed conflicts in Africa’s Sahara and Sahel regions are resulting in a sharp decline of species such as the African elephant and dorcas gazelle.

The study, led by researchers at Portugal’s University of Porto, found that the proliferation of firearms, over-exploitation of natural resources and human intrusion into previously isolated areas have resulted in the extinction or near-extinction of 12 out of the 14 large animal species in the region.

The study also found that oil drilling has led to the progressive extinction of the addax, a type of antelope.

Rodent Free Island

The world’s most ambitious project to eradicate invasive species has left the sub-Antarctic island of South Georgia free of rats and mice for probably the first time in nearly 250 years.

The rodents were inadvertently introduced by sealers and whalers who stopped there. The pests have since ravaged the British territory’s native species, especially birds that lay their eggs on the ground or in burrows.

But a $15 million project to poison or trap the rodents over the past decade has apparently eradicated every single one from the 100-mile-long island.

Sniffer dogs like this one were unable to detect any more rats on South Georgia Island.

EWCOLOR

Environment

Monster ocean wave sets southern hemisphere record

Scientists have recorded what is believed to be the largest wave ever in the southern hemisphere, a 23.8 metre monster the height of an eight-floor building.

A buoy recorded the wave on Tuesday during a ferocious storm in the notoriously wild Southern Ocean near Campbell Island, some 700 kilometres south of New Zealand, research body MetOcean Solutions said.

Senior oceanographer Tom Durrant said it wiped out the previous southern-hemisphere record of 22.03 metres recorded in 2012.

Durrant added that even bigger waves topping 25 metres were probably whipped up by the storm, which tracked east through the area on Tuesday, but the buoy was not in the best place to record them. He said the buoy, installed in March to measure the extreme conditions in the Southern Ocean, also only recorded for a 20-minute burst every three hours to conserve its batteries.

Unnamed

Environment

Global Temperature Extremes

The week’s hottest temperature was 116 degrees Fahrenheit (46.7 degrees Celsius) in Luxor, Egypt.

The week’s coldest temperature was minus 98.0 degrees Fahrenheit (minus 72.2 degrees Celsius) at Vostok, Antarctica.

Temperatures were tabulated from the more than 10,000 worldwide synoptic weather stations. The United Nations World Meteorological Organization sets the standards for weather observations, and provides a global telecommunications circuit for data distribution.

Disease

Ebola – Democratic Republic Congo – Update

From 4 April through 9 May 2018, a total of 32 Ebola virus disease cases (among which two are confirmed, 18 probable and 12 suspected cases) were reported from Bikoro health zone, Equateur province, including 18 deaths. Three of the 32 cases were among healthcare workers. The patients presented with fever, diarrhoea, abdominal pain, myalgia and arthralgia, and some also showed haemorrhagic signs and symptoms. All cases were reported from the catchment area of the Ikoko-Impenge health facility, located 30 km from the central health zone office of Bikoro, which is 280 km by road from Mbandaka, the capital of Equateur province.

Volcanos

Roundup of Global Volcanic Activity – Ongoing Activity for the week of 2 May – 8 May 2018

Aira | Kyushu (Japan) : JMA reported that there were seven events and 15 explosions at Minamidake crater (at Aira Caldera’s Sakurajima volcano) during 1-7 May. Tephra was ejected as far as 1.3 km from the crater, and ash plumes rose as high as 2.8 km above the crater rim. The Alert Level remained at 3 (on a 5-level scale).

Bagana | Bougainville (Papua New Guinea) : Based on analyses of satellite imagery and model data, the Darwin VAAC reported that on 8 May a possible ash plume from Bagana rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted W.

Cleveland | Chuginadak Island (USA) : AVO reported that a small explosion at Cleveland was detected in seismic and infrasound data at 2149 on 4 May. The event produced a small ash cloud that rose as high as 6.7 km (22,000 ft) a.s.l. and drifted SE. The Aviation colour Code and the Volcano Alert Level were raised to Orange/Watch. No additional significant activity led AVO to the lower the levels back to Yellow/Advisory on 6 May.

Dukono | Halmahera (Indonesia) : Based on analyses of satellite imagery, wind model data, and notices from PVMBG, the Darwin VAAC reported that during 2-8 May ash plumes from Dukono rose to altitudes of 1.5-3 km (5,000-10,000 ft) a.s.l. and drifted NE and E.

Ebeko | Paramushir Island (Russia) : Volcanologists in Severo-Kurilsk (Paramushir Island), about 7 km E of Ebeko, observed explosions during 1-3 May that sent ash plumes as high as 2.8 km (9,200 ft) a.s.l. The Aviation colour Code remained at Orange (the second highest level on a four-colour scale).

Klyuchevskoy | Central Kamchatka (Russia) : Based on webcam and satellite observations KVERT reported that at 1150 on 8 May an ash plume from Klyuchevskoy rose to altitudes of 5-5.5 km (16,400-18,000 ft) a.s.l. and drifted 105 km SSE. The Aviation colour Code was raised to Orange.

Pacaya | Guatemala : INSIVUMEH reported that during 1-2 May Strombolian explosions at Pacaya’s Mackenney Crater ejected material as high as 50 m above the crater rim. A 500-m-long lava flow advanced NW towards Cerro Chino. Nighttime crater incandescence was visible, and rumbling was heard in areas within 2-3 km. Activity increased on 4 May, with explosions ejecting tephra as high as 80 m. The lava flow continued to advance and by 6 May was 600 m long. Strombolian explosions ejected material 15 m above the crater rim, and nighttime incandescence continued to be present.

Sabancaya | Peru : Observatorio Vulcanológico del Sur del IGP (OVS-IGP) and Observatorio Vulcanológico del INGEMMET (OVI) reported that explosive activity at Sabancaya increased compared to the previous week; explosions averaged 25 per day during 30 April-6 May. The number of long-period events and signals indicating emissions increased. Gas-and-ash plumes rose as high as 2 km above the crater rim and drifted 40 km N, NE, and E. The MIROVA system detected four thermal anomalies, and on 6 May the sulfur dioxide gas flux was high at 2,662 tons/day. The report noted that the public should not approach the crater within a 12-km radius.

Santa Maria | Guatemala : INSIVUMEH reported that explosions at Santa María’s Santiaguito lava-dome complex, detected by the seismic network during 1-2 and 5-6 May, generated ash plumes that rose 600-700 m and drifted SW. Avalanches of material descended the SE flank of the lava dome.

Sheveluch | Central Kamchatka (Russia) : KVERT reported that a weak thermal anomaly over Sheveluch was identified in satellite images on 28 and 30 April and 2 May. The Aviation colour Code remained at Orange.

Suwanosejima | Ryukyu Islands (Japan) : The Tokyo VAAC reported explosions at Suwanosejima on 2 and 4 May, based on JMA notices and satellite data.