Earthquakes

Magnitude 5+ Earthquakes – Global

5.7 Earthquake hits Minahasa, Sulawesi, Indonesia.

5.2 Earthquake hits the Hindu Kush in Afghanistan.

5.2 Earthquake hits the Kermedec Islands off New Zealand.

5.2 Earthquake hits the Mid-Indian ridge.

5.1 Earthquake hits Fiji.

5.1 Earthquake hits the southern Mid-Atlantic ridge.

Storms and Floods

Tropical Storms

In the Western Pacific:

Typhoon Nari is located approximately 361 nm east of Da Nang, Vietnam.

Typhoon Nari hits the Philippines, now re-organizing and heading for Vietnam – Thirteen people were killed and 2.1 million people lost power on the main Philippine island of Luzon afterTyphoon Nari hit on Friday night near midnight local time. Nari was a Category 3 typhoon with 115 mph winds a few hours before landfall. The core of the storm passed about 80 miles north of the capital of Manila, sparing the capital major flooding, but the storm dumped torrential rains in excess of ten inches to the northeast of Manilla. Passage over Luzon weakened Nari to a Category 1 storm, but it is already beginning to re-organize over the South China Sea between the Philippines and Vietnam. Nari is under moderate wind shear of 15 – 20 knots, which should keep intensification relatively slow, and increasing interaction with land will act to slow intensification on Sunday and Monday. Nari could be near Category 3 strength with 115 mph winds by Monday, and landfall in Vietnam is expected around 21 UTC on Monday.

Typhoon Wipha is located approximately 441 nm south-southwest of Iwo To, Japan.

Category 1 Typhoon Wipha is intensifying as it heads northwest towards Japan, and the storm is expected to reach major Category 3 strength by Monday. By Tuesday, Wipha will recurve to the northeast and begin weakening, passing very close to Tokyo, Japan, sometime between 00 – 12 UTC on Wednesday. High winds and heavy rains from Wipha may be a concern for the Fukushima nuclear site, where workers continue to struggle with high radiation levels in the wake of the 2011 tsunami that damaged the reactors.

In the Eastern Pacific:

Tropical depression 15E is located about 470 mi (755 km) S of the southern tip of Baja California. Weakening is expected this evening.

In the Indian Ocean:

Cyclone Phailin tore into India’s coast, killing at least five people, and forcing half a million into shelters.

Phailin made landfall on the northeast coast of India near the town of Gopalpur (population 7,000) at 16 UTC (noon EDT) Saturday. Phailin was weakening substantially at landfall, due to interaction with land, and was rated a Category 4 storm with 140 mph winds by the Joint Typhoon Warning Center (JTWC), four hours before landfall. The pressure bottomed out at 938 mb in Gopalpur as the eye passed over, and the city reported sustained winds of 56 mph, gusting to 85 mph, in the eyewall. A 938 mb pressure is what one expects to find in a Category 4 storm with 140 mph winds, using the “Dvorak technique” of satellite wind and pressure estimation. Phailin is bringing torrential rains of over an inch per hour, as estimated by microwave satellite instruments.

Volcanos

Roundup of Global Volcanic Activity:

Gorely (Southern Kamchatka): No changes in activity (strong degassing, moderate seismic activity) have occurred.

Klyuchevskoy (Kamchatka): The eruption continues with increasing strength from two locations, both at the summit vent, and at the flank vent between Klyuchevskoy and Kamen where a cinder cone is growing. Webcam images show violent strombolian activity and/or lava fountains at the summit vent, large lava flows on the NW, W and SW flanks and a continuous ash plume drifting to the SE. KVERT reports strong seismicity with increased tremor (81.6 mcm/s amplitude). Satellite data showed a big thermal anomaly over the volcano. Ash plumes extended 263 mi(425 km) to the south-east of the volcano.

Kizimen (Kamchatka): Extrusion of magma at the lava dome has been weak recently, but it remains active.

Karymsky (Kamchatka): Explosive activity of strombolian to weak vulanian type continues as evidenced by the presence of a ash plume that extended about 11 miles (18 km) east of the volcano yesterday. KVERT reports moderate seismic activity.

Shiveluch (Kamchatka): KVERT reports that the “growth of the lava dome continues – strong and moderate ash explosions up to 4-6 km a.s.l., fumarolic activity and incandescence of the dome summit, and hot avalanches accompany this process. Satellite data showed a thermal anomaly over the volcano.”

Bezymianny (Central Kamchatka Depression): The nearby strong eruption of nearby Klyuchevskoy volcano obscures any seismic signal from Bezymianny, but according to KVERT, the lava dome remains active.

Sakurajima (Kyushu, Japan): After a couple of days with less violent and less frequent explosions, the volcano stepped up its activity again and produced a series of 6 eruptions yesterday alone, culminating in an explosion that sent an ash plume to 12,000 ft (3.6 km). One of the eruptions during the night (in Japan, 15:22 UTC) is shown on these videos:

White Island (New Zealand): A moderate explosive eruption occurred at around 20:09pm NZDT last Friday, GeoNet writes. “The eruption lasted about 1 minute based on data from acoustic and seismic sensors, and was confirmed by subsequent analysis of web camera images during daylight hours.” The Volcanic Alert Level was raised to Level 2 and the Aviation Colour Code to Orange. “Observations from the web cameras show an explosive eruption producing an ash cloud column that expanded across the Main Crater floor. New mud deposited on the crater floor is evident in the web camera images from the crater rim this morning. The present activity is a continuation of the unrest observed at White Island for the past 15 months and hazardous eruptions of this type may occur with no warning. This eruption is larger than recent events and would have been life threatening to people on the island.” (Source: GeoNet)

Veniaminof (Alaska Peninsula, USA): The eruption continues. Seismicity remains elevated but partially masked by storm noise. Satellite and web camera images are obscured by clouds, but it is likely that lava effusion and minor ash emissions continue.(AVO)

Popocatépetl (Central Mexico): No changes have occurred. The volcano produces 1-2 generally weak emissions of steam and sometimes ash on average per hour.

Reventador (Ecuador): Intermittent small to moderate ash explosions continue.

Tungurahua (Ecuador): Activity has been comparably mild with strombolian explosions of varying size, steam and ash emissions causing some ash fall in nearby areas.