Earthquakes

Magnitude 5+ Earthquakes – Global

5.1 Earthquake hits the central Mid-Atlantic ridge.

5.0 Earthquake hits the South Sandwich Islands.

Storms and Floods

Tropical Storms – Roundup of Tropical Storms:

Gl sst mm

Typhoon Halola is located about 413 nm east-southeast of Kadena AB, Okinawa, Japan and is tracking west-northwestward at 08 knots.

Tropical depression 12w (twelve), located approximately 212 nm northeast of Manila, Philippines, is tracking north-northwestward at 05 knots.

Tropical Depression Seven-E is located about 430 mi…690 km SW of the southern tip of Baja California with maximum sustained winds…35 mph…55 km/h. Present movement…NNW or 330 degrees at 9 mph…15 km/h.

NewsBytes:

Philippines – Heavy rain and floods brought by the Southwest Monsoon (Habagat) in Luzon, Philippines have claimed the lives of at least 19 people. More than 3,000 people are still living in 25 evacuation centres.

California, USA – California leaders declared a state of emergency after flash floods and mudslides damaged roads and highways in much of the state earlier this week, leading to delays, costs and uncertainties in supply chains stretching across the country.

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Wildfires

Wildfires – Montana, USA

A fast-moving wildfire burned through nearly 1,000 acres inside a national park in Montana on Tuesday, officials said.

Within hours the inferno prompted evacuations of a park inn and campground. Officials also closed a portion of the Going-to-the-Sun Road, a nearly 50-mile roadway that runs through the park.

Volcanos

Roundup of Global Volcanic Activity

Chirinkotan (Northern Kuriles): Ash emissions from small explosions at the volcano were detected on satellite imagery last Monday (20 July). The ash plumes rose to estimated 12,000 ft (4 km) altitude and drifted SE.

Sinabung (Sumatra, Indonesia): The volcano continues to slowly effuse viscous lava which feeds the lava dome on its summit. This activity results in numerous avalanches and pyroclastic flows. Several thousands of people continue to live in temporary shelters.

Nevado del Ruiz (Colombia): Intermittent ash emissions began to occur at the volcano again since 13 July. The volcano observatory of Manizales reports increased seismic activity, related to internal fluid movements and rock fracturing processes. Ash fall occurred on 13 July in nearby villages in up to 30 km distance to the southwest (in Chinchina). On 19 July, another series of explosions produced ash plumes that rose approx. 1 km above the crater and quickly dissipated.

Cotopaxi (Ecuador): Volcanic unrest continues. Yesterday, the Geophysical Institute registered 105 episodes of volcanic tremor and 3 volcano-tectonic earthquakes. SO2 emissions remain elevated, at nearly 3000 tons per day.

Sabancaya (Peru): Light ash emissions were reported this morning, rising to 20,000 ft (6 km) altitude. Seismic activity at the volcano remains low but above background. A slight increase in quakes related to internal fluid movements (gasses, water, magma) was noted during the past week. Staff from the INGEMMET volcano observatory visited the summit area on 9 and 10 July and sampled ash that had been erupted during the recent weeks. A significant fraction of the ash was confirmed to originate from fresh (“juvenile”) magma (as opposed to older weathered rock fragments), which confirms that the volcano has entered a magmatic eruptive phase.