Kilauea is quite possibly the most active volcano Hawaii will ever know. Three of the five Hawaii Island volcanoes are active. None has erupted as consistently in the modern era as Kiluaea.
Hawaii legend says that the Kilauea volcano is home to the volcano goddess Pele. But more than legend, this Big Island volcano is one of the most famous on the planet due to its frequent activity. This Hawaiian eruption has been continuous for more than 30 years. In the last 1100 years, the Kīlauea eruption has covered more than 500 square miles (1,300 square km) of the Big Island with lava.
This Kilauea eruption has been adding new real estate to the Big Island continuously since 1983, and with few interruptions over the past two centuries. In fact over the last 100 years, Kilauea has been erupting almost half the time.
The current Kilauea eruption is called the Pu'u 'Ō'ō eruption, named for the vent along Kilauea’s east rift zone from which lava is spewing. Since the Pu'u 'Ō'ō Crater began erupting on January 3, 1983, its lava flows have destroyed over 180 structures (mostly homes, but also churches and native temples [heiau]).
For those wishing to see the dramatic spectacle as lava meets the ocean, there had been no active lava ocean entry on the Big Island between August, 2013 and July, 2016. Then on July 26, 2016, lava that had been flowing southeast of Pu'u 'O'o crossed the southern emergency road and entered the ocean once again. New land is being added to the Big island for the first time in nearly three years. There is no way of knowing how long the lava ocean entry will last, but for now (volcano goddess) Pele is putting on quite a show! Use extreme caution if you hike out to witness the impressive display.
While most eruptions have flowed southeast toward the ocean, on June 27, 2014 a new outbreak along the northeast flank of Pu'u 'Ō'ō began flowing northeast. By late October, 2014 the flow had entered the town of Pahoa. The lava continued to advance slowly, and on November 11, 2014 the first home was destroyed.
That flow has currently stopped but in April, 2015 the lava lake within Halema'uma'u Crater reached record high levels. Visit the National Park Service Kilauea current conditions for today's most current information on Kilauea's active lava flow.
Hawaii Volcanoes National Park is a great starting point for exploration of the area around the Kilauea volcano. The Kilauea Visitor Center is located roughly 45 minutes south of Hilo and just over two hours from Kailua-Kona along Highway 11. Stop here to familiarize yourself with the amazing sights of the park.
On Crater Rim Drive, drive west a couple of miles from the Visitor Center to the Kilauea volcano overlook and Jaggar Museum, adjacent to the Hawaiian Volcano Observatory. The museum offers fascinating information on not only Hawaiian volcanoes, but volcanoes around the world, as well as seismology, history, and Hawaiian legend.
During the day, the dry lake-bed of what was once an enormous reservoir of molten lava is visible spreading out below you. This is the Kilauea Caldera. A caldera is a bowl-shaped depression that is formed when an erupting volcano empties a sub-surface chamber of magma. The structure above the now empty chamber collapses, forming a steep valley. The Kilauea Caldera is 2.5 miles (4k) long and 400 feet (122 meters) deep.
A plume of sulphur dioxide gas billows out of the center of the Halema'uma'u Crater within the Kilauea Caldera. Halema'uma'u represents what remains of the magma chamber that, when emptied, formed the Kilauea Caldera. The Halema'uma'u Crater is 3000 feet (914 meters) across and nearly 300 feet (91 meters) deep. Recent eruptions have filled the crater floor with lava, steadily decreasing its depth.
What is the source of the smoke and gas? Just out of sight over the edge of the crater lies the lava lake, a bubbling, oozing mass of fiery hot liquid emanating from the earth’s core. Imagine: you are standing atop perhaps the most active volcano Hawaii will ever know.
When Kilauea's sulfur dioxide emissions mix with air, dust and water particles, the result is what is known as vog, or volcanic fog. Winds can push the vog more than 50 miles, accounting for the frequent haze in and around Kona. Part of Crater Rim Drive within Hawaii Volcanoes National Park is often closed due to dangerous sulphur dioxide emissions.
At night it’s even more spectacular! The Kilauea eruption is most evident when the sky is dark, as an orange glow emanates from the fiery furnace at the bottom of Halema'uma'u Crater. Hawaii Volcanoes National Park is open 24 hours a day, so if you happen to be in the area in the evening we recommend an after-dark trip to the overlook.
The lava level inside Halema'uma'u Crater is typically 100 to 200 feet (30-60 meters) below the floor of the crater, but the glow is clearly visible. In April, 2015 the level of the lava lake had risen high enough to spill onto the floor of the crater.
In addition to her persistence, one thing that makes Kilauea so fascinating is the ease of access. Consider that you can literally drive to the edge of the summit crater or hike to the bottom of the Kilauea Iki Crater to the east!
Speaking of hikes, there are many in the vicinity of the Kilauea volcano. Our favorite hike in the area is the magnificent Kilauea Iki loop. This hike has it all, from lush rainforest thick with tropical flowers and gargantuan tree ferns, to the mysterious ancient floor of the Kilauea Iki Crater.
Expect variable weather on this part of the island. You may be bundled in a rain jacket one moment, wearing only a t-shirt in the hot sun a few minutes later. It can be hot and sticky on the crater floor, or cold and damp on the rim.
Mauna Loa is of course another active volcano Hawaii is known for. Because of the difficult access, recording the actual eruptions has been historically challenging. That mammoth Hawaii volcano last erupted for three weeks in 1984.
If you prefer to travel with a guide, join a Hawaii volcano tour, offered daily from both sides of the island. Hawaii helicopter tours are another great way to view areas of this active volcano Hawaii lava flow visible only from the air.