Images

The active front of a pāhoehoe flow near the intersection of Pikake and Warrior Street, in the Royal Gardens subdivision. The road in the lower portion of the photo is the last remaining piece of Pikake Street.

The 'a'ā flow that was active in the upper reaches of Royal Gardens subdivision on January 19 had stalled by today. The flow can be identified as the dark flow terminating near the center of the photograph. The flow front had extended well into the subdivision, almost reaching the level of Plumeria Street.

Bluff erosion during the 2009–10 El Niño undermined the Great Highway guardrail at Ocean Beach, San Francisco, California. The shoreline eroded, on average, 55 meters that winter, leading to lane closures on the highway and an emergency \$5-million revetment along the base of this bluff.

Bluff erosion during the 2009–10 El Niño undermined the Great Highway guardrail at the southern end of Ocean Beach, San Francisco, California. The shoreline eroded, on average, 55 meters that winter, leading to lane closures on the highway and an emergency \$5-million revetment along the base of this bluff. Photo taken by Jeff Hansen, USGS, 20 January 2010.

Map of the North American - Caribbean tectonic plate boundary. Colors denote depth below sea level and elevation on land. Bold numbers are the years of moderately large (larger than about M7) historical earthquakes written next to their approximate location. Asterisk - Location of the January 12, 2010 earthquake.

Severe bluff erosion, along the southern end of Ocean Beach, San Francisco, California, including damage to the guard rail of the Great Highway (Calif. Hwy.1). The severe winter erosion led to lane closures of the highway and an emergency, $5 million revetment along the base of this bluff.

The terminus of the more vigorous western branch of the active flow on the western side of the TEB flow field near the top of the Royal Gardens subdivision.

Two HVO geologists are standing on the east rim of Pu`u `Ō `ō cone, triangulating the depth of several degassing vents inside the crater. An infrared camera is being used to see the vents through the fume. The plume in the background is coming from the east wall vent.

Photo of shipwreck beached in Southern CA.

Sunrise behind Kayak Island, near the mouth of the Copper River, coastal Gulf of Alaska.

Sunrise behind Kayak Island, near the mouth of the Copper River, coastal Gulf of Alaska.

Harbor in Cordova, AK.

Mountains towering above the mouth of the Copper River from the coastal Gulf of Alaska.

Sunrise on Marblehead Neck MA.

Cracks shown here in the exterior and supporting structures of this home are indicative of subsidence damage associated with sinkhole activity.

More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold temperatures. The sinkholes destroyed homes, roads and sections of cultivated areas.

More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold temperatures. The sinkholes destroyed homes, roads and sections of cultivated areas.

Strawberry fields surrounded by residential housing with the irrigation pumphouse in the foreground. 

Christopher Reich core drills coral to collect cores for paleoclimate analyses.

Absolutes pier curing at Deadhorse geomagnetic observatory.

The entire root perimeter of this tree collapsed in response to subsidence activity. More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold temperatures.