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Its relatively flat summit apparently contains a caldera about 3 miles across; two distinct ridges radiating from the summit are probably rift zones. The July-August 1996 swarm was by far the most energetic seismic activity at Lö'ihi recorded to date, involving more than 4,200 earthquakes.

Photographs taken by deep-sea cameras show that Lö'ihi's summit area has fresh-appearing, coherent pillow-lava flows and talus blocks. Ninety-five of these earthquakes had magnitudes of 4.0 or larger, and three of these were felt onshore by residents of Hawai'i's Ka'ü District.

Pillow-lava fragments dredged from Lö'ihi have fresh glassy crusts, indicative of their recent formation. The intense 1996 earthquake activity at Lö'ihi launched two "rapid-response" expeditions in August-September by University of Hawai'i scientists to conduct onsite observations of the activity.

The exact ages of the sampled Lö'ihi flows are not yet known, but certainly some cannot be more than a few hundred years old. This included surface-ship bathymetric surveys and a series of manned-submersible dives to make closeup observations and collect lava samples.

Pinatubo was heavily eroded, inconspicuous and obscured from view.

It was covered with dense forests which supported a population of several thousand indigenous Aetas.

Pillow Basalt: Fresh pillow basalt on the northeast rim of Loihi Volcano, a submarine volcano located southeast of the Island of Hawaii. These rapid-response and followup studies indicated that part of Lö'ihi's summit had collapsed to form a new pit crater (called Pele's Pit), about 1,800 feet across and 900 feet deep.

Within this new crater, several new hydrothermal vents were observed, issuing the hottest waters ever measured at Lö'ihi (about 390°F).

Its eruptive history was unknown to most before the pre-eruption volcanic activities of 1991, just before June.Adult Friend Finder has helped millions of people find traditional partners, swinger groups, threesomes, and a variety of other alternative partners.Adult dating through Adult Friend Finder saves you time and effort.Lö'ihi rises 10,100 feet above the ocean floor to within 3,100 feet of the water surface.Recent detailed mapping shows Lö'ihi to be similar in form to Kïlauea and Mauna Loa. In fact, since 1959 the HVO seismic network has recorded large earthquake swarms at Lö'ihi during 1971-1972, 1975, 1984-1985, 1990-1991, and 1996, suggesting major submarine eruptions or magma intrusions into the upper part of Lö'ihi.