Earthquakes

Magnitude 5+ Earthquakes – Global

5.7 earthquake hits the Solomon Islands.

5.5 earthquake hits the Pagan region, North Mariana Islands.

5.3 earthquake hits the Solomon Islands.

5.3 earthquake hits the South Sandwich Islands.

5.2 earthquake hits Fiji.

5.1 earthquake hits the Mariana Islands.

5.1 earthquake hits Vancouver Island, Canada.

5.0 earthquake hits near the east coast of Kamchatka, Russia.

Disease

Measles – South Africa

In a follow-up on the measles outbreak in South Africa, the National Institute of Communicable Diseases (NICD) reports 71 cases of measles with laboratory confirmation between September 1 and November 22, 2022.

Cholera – Lebanon

In an update on the cholera outbreak in Lebanon, the Ministry of Public Health (MoPH) reports that as of today, since the first case was confirmed on October 5, 4,337 cumulative suspected and confirmed cases, including 595 confirmed. The total fatalities has increased to 20.

Volcanos

Roundup of Global Volcanic Activity – Ongoing Activity for the week 16 November – 22 November 2022

Aira – Kyushu (Japan) : JMA reported ongoing eruptive activity at Minamidake Crater (at Aira Caldera’s Sakurajima volcano) and nighttime crater incandescence during 14-21 November. Sulfur dioxide emissions were slightly high on 14 November at 1,100 tons per day. Six eruptive events and four explosions (during 15-16 and 20-21 November) produced volcanic plumes that rose as high as 2.2 km above the crater rim and ejected large blocks as far as 900 m from the vent.

Alaid – Kuril Islands (Russia) : Activity has been gradually decreasing since the last ash plume was recorded on 26 October. A thermal anomaly continued to periodically be identified in satellite images when weather conditions permitted views, though the temperature of the thermal anomaly began decreasing on 29 October.

Ebeko – Paramushir Island (Russia) : KVERT reported that moderate activity at Ebeko was ongoing during 10-17 November. According to volcanologists in Severo-Kurilsk (Paramushir Island, about 7 km E) explosions during 12-13 and 16 November generated ash plumes that rose to 2.6 km (8,500 ft) a.s.l. and drifted in eastern directions. Ash fell in Severo-Kurilsk on 16 November. A thermal anomaly was identified in satellite images on 16 November; weather clouds prevented satellite views on the other days of the week.

Great Sitkin – Andreanof Islands (USA) : AVO reported that slow lava effusion continued at Great Sitkin during 15-22 November and the flow field continued to grow. Flow lobes extended about 600 m E of the vent and about 430 m S. Seismicity was low, with the occasional detection of low-frequency earthquakes. Satellite and webcam images were often cloudy through the week.

Karymsky – Eastern Kamchatka (Russia) : KVERT reported that a thermal anomaly at Karymsky was identified in satellite images on 13 and 15-17 November. Gas-and-steam emissions persisted.

Kerinci – Central Sumatra : PVMBG reported that brown ash plumes from Kerinci, often dense, rose as high as 150 m above the summit and drifted NE, E, and SE during 16-18 and 20-21 November. Weather clouds prevented visual observations during 18-20 November.

Kilauea – Hawaiian Islands (USA) : HVO reported that lava continued to effuse from a vent in the lower W wall of Kilauea’s Halema`uma`u Crater during 16-22 November entering the lava lake and flowing onto the crater floor. The active part of the lake remained at a steady level all week.

Manam – Northeast of New Guinea : The Darwin VAAC reported that on 20 November ash plumes from Manam rose to 1.8 km (6,000 ft) and drifted NW based on satellite images.

Pavlof – Alaska Peninsula, Alaska: AVO reported that a minor eruption at a vent on Pavlof’s upper E flank was ongoing during 16-22 November and nearly continuous seismic tremor was recorded. Almost daily elevated surface temperatures were identified in satellite images; weather clouds prevented views during 21-22 November. Webcam images showed occasional minor steaming and minor ash emissions in addition to a recent mass flow and ash deposits on the upper to lower flanks visible during 15-16 November, and incandescence at the vent during 16-17 November possibly associated with lava spattering or fountaining.

Semeru – Eastern Java : PVMBG reported that the eruption at Semeru continued during 16-22 November. White gas-and-steam plumes rose 100-200 m above the summit and drifted in various directions during 16-17 November. Emissions were not visible during 18-20 November, though weather conditions sometimes prevented visual observations. At 0608 on 21 November a white-to-gray ash plume rose around 400 m and drifted E. On 22 November white-to-gray ash plumes rose 300 m and drifted S at 0405, 600 m at 0503, and 800 m at 1541.

Semisopochnoi – Aleutian Islands (USA) : AVO reported ongoing low-level seismicity at Semisopochnoi characterized by intermittent seismic tremor and occasional low-frequency earthquakes during 16-22 November. Satellite and webcam views were mostly obscured by weather clouds, though during clear views continuous gas-and-steam emissions from the N crater of Mount Cerberus were visible.

Sheveluch – Central Kamchatka (Russia) : KVERT reported that the ongoing eruption at Sheveluch during 11-17 November was generally characterized by explosions, hot avalanches, lava-dome extrusion, and strong fumarolic activity. A daily thermal anomaly was identified in satellite images. Collapses generated hot avalanches and ash plumes that drifted 85 km ENE during 13-14, and 16-17 November.

Suwanosejima – Ryukyu Islands (Japan) : JMA reported that the eruption at Suwanosejima’s Ontake Crater continued during 14-21 November and crater incandescence was visible nightly. Eruption plumes generally rose 600 m above the crater rim and blended into weather clouds. An explosion at 0251 on 15 November ejected blocks 500 m from the vent and produced an eruption plume that rose 2.3 km above the crater rim and drifted SE.