Photo and Video Chronology - Mauna Loa - November 15, 2017

Release Date:

Lava flows, Pu‘u Pohaku‘ohanalei cone, Moku‘āweoweo's North Pit, Sulphur Cone area, and a video of Mauna Loa's summit caldera.

Mauna Loa lava flows

Mauna Loa lava flows...

The black unit in the foreground is the 1903 fissure vents and flows from the southwest rift zone of Mauna Loa. Moving around the photo clockwise, next set of hills are the 1926 spatter ramparts. Above the 1926 ramparts the next dark colored hills (red interior) are the vents for the 1919 'Alika flow. In the middle of the image, the dark flows and those far afield are all from 1950. The mountain in the far background is Hualālai.

(Public domain.)

Pu‘u Pohaku‘ohanalei 

aerial view, looking to the northwest, shows Pu‘u Pohaku‘ohanalei

This aerial view, looking to the northwest, shows Pu‘u Pohaku‘ohanalei on Mauna Loa. This cone is near the 1984 fissure on the volcano's Northeast Rift Zone.

(Public domain.)

North Pit, Moku‘āweoweo 

View of Moku‘āweoweo's North Pit, looking to the west-southwest.

View of Moku‘āweoweo's North Pit, looking to the west-southwest. The summit of Mauna Loa is the peak visible in the background, slightly left of center. The two linear features in the foreground are ramparts from previous fissure eruptions.

(Public domain.)

Sulphur Cone, Mauna Loa

 

Sulphur Cone, Mauna Loa...

This aerial view looking upslope on Mauna Loa shows the expanse of the volcano's upper Southwest Rift Zone. The white and yellow altered ground surface is part of the Sulphur Cone area. 

(Public domain.)

A more vertical view of the whole Sulphur Cone area, including a su...

A more vertical view of the whole Sulphur Cone area, including a sulphur flow out of one of the cones (yellow bottom of image). The white in the middle of the image is caused by alteration of the rock by volcanic gas.

(Public domain.)

A routine helicopter overflight today provided good views of Mauna Loa's summit caldera. The video starts from the northeast end of the caldera, near North Pit, and travels southwest. In the southwest portion of the caldera, the prominent 1940 cone is followed by the 1949 cone on the caldera rim. The video ends with the steep walls of South Pit. The video is shown at 2x speed.

(Public domain.)