Images

Helicopter telephoto zoom of HVO technician performing routine maintenance on a web camera during yesterday's overflight.

Clear weather afforded good views of the water pond in Halema‘uma‘u. No major changes were observed in the pond, but it continues to slowly rise. The water surface was steaming, and had a temperature of approximately 70 degrees C (158 degrees F). For scale, the pond is about 70 meters (230 feet) long.

Today's noticed overflight a recently exposed feature of a hole with a smoother slope descending below it in the eastern wall of Pu‘u ‘Ō‘ō. It is unclear if this is simply a rockfall/collapse feature with a debris slope or part of the conduit that fed episode 61 activity.

Left: Aerial view of the new extension of the Tern Lake thermal area looking southwest. Note the steam in the central part of the image. Right: FLIR (Forward Looking InfraRed) image of the thermal area, with the field of view indicated by the red box in the visible aerial view. Warmest areas are bright white/yellow, while cooler areas are purple.

Telephoto zoom on the feature in the east wall of Pu‘u ‘Ō‘ō.

Aerial view of the new thermal area, in the center left. The existing Tern Lake thermal area is the bright white patch of ground in the upper middle part of the image. West Tern Lake is in the lower right. Research conducted under NPS Geology Programs Milestones Permit 2016-9.

Seth Ackerman processing the seafloor mapping data as they are collected on the Cape Cod Bay 2019 research cruise.

Sunrise on Cape Cod Bay with a peek inside the processing van on the deck of R/V Warren Jr. 

View of the new thermal area from the ground. Research conducted under NPS Geology Programs Milestones Permit 2016-9.

Water pond in Halemaumau 8-18-19

The pond within Halema‘uma‘u has notably widened and deepened since August 15, as shown in these two photos taken on August 17 (right) and August 15 (left). Note the changes in the neck between the two ends of the pond. USGS photos by D. Swanson.

Telephoto view of sulfur deposits at one of the several fumaroles on the north wall of Halema‘uma‘u. USGS photo by D. Swanson, 08-14-2019.

The water level continues to slowly rise in Halema‘uma‘u, drowning many of the small rocks that were exposed in the center of the pond. Ripples across the water surface were also evident today.

A colorful sunrise appears over the horizon of a calm ocean offshore of Melbourne, Florida. USGS Scientist RC Mickey collects data for location and elevation of sea turtle crawls and associated beach profiles this stretch of coastline.

3,557 earthquakes recorded since July 4, 2019 above Magnitude 2

M6.4 12km W of Searles Valley, CA
2019-07-04 17:33:49 (UTC)
51,000+ responses via Did You Feel It?

M7.1 18km W of Searles Valley, CA
2019-07-06 03:19:53 (UTC)
42,000+ responses via Did You Feel It?

 Research scientist Meagan Gonneea and USGS intern Angela Trejo survey the Jones River in Kingston, MA. Removal of a dam across the Jones River began July 15, 2019, as a first step to restore river habitat, which is particularly critical for herring passage from the sea to inland lakes for spawning.

USGS scientists Beth Haddon (left) and Jaime Delano (right) measuring an offset road at the site of the Ridgecrest earthquake sequence rupture. Photo credit: Chris DuRoss, USGS

USGS Geophysicists Elizabeth Cochran and Nick VanDerElst install a seismometer on the base Photo credit: Ben Brooks, USGS

USGS scientist Jessie Thompson Jobe measures fault offset at the site of the Ridgecrest earthquake sequence rupture. Photo credit: Chris DuRoss, USGS

USGS scientist Jaime Delano, observes a sand blow caused by liquefaction during the M7.1 Ridgecrest earthquake. Photo credit: Chris DuRoss

Kate Scharer examining striations along fault scarp while completing GPS survey of fault rupture.  Here the fault has about 2.6 m of horizontal displacement and 0.5 m of vertical.  The rake of the striations is 47 degrees.  Photo credit: Jamie Delano, USGS