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Volcanoes. Fiery forces of destruction and mayhem, born from deep within the Earth. While natural disasters like tornadoes and tsunamis evoke fear, volcanoes possess a uniquely infernal aura. They are more than just mountains belching molten rock—they are deeply embedded in our culture and play a significant role in shaping the land we inhabit.
10. The Volcano Bird
Not all creatures view volcanoes as mere instruments of chaos. One exceptionally unique bird actually depends on them for survival. The Maleo is a critically endangered species that relies on geothermal heat to incubate its eggs. During nesting season, the maleo specifically seeks out volcanic regions and uses their warmth to hatch its eggs. This is necessary because their eggs are so large—roughly five times the size of a chicken egg—that the female, about the size of a small duck, would be incapable of incubating them on her own.
9. The Black Lava Volcano
The tongue-twistingly named Ol Doinyo Lengai is a strong contender for the title of the most unusual volcano in the world. This Tanzanian volcano is impressive in both size and appearance, standing at 2,200 meters (7,200 ft) tall and towering over the surrounding grasslands. However, its true fascination lies in its lava.
Ol Doinyo Lengai is the only volcano on Earth known to erupt 'black lava,' a dark, mud-like carbonatite material that is unlike any other lava produced by volcanoes. Geologists often compare this lava to substances found on other planets. Ol Doinyo Lengai's lava is notably cooler than typical lava—around 540 °C (1,000 °F)—meaning it can sometimes cool midair, falling like shards of glass. As an active (yet relatively harmless) volcano, those who embark on the challenging journey to witness it are often rewarded with breathtaking views of black lava fountains, pools, and formations.
8. Volcano Gods
Volcanoes have often been linked to divine forces. Many civilizations that thrived in volcanic regions have worshipped volcano gods, the most renowned probably being Vulcan. He was the Roman blacksmith of the gods, said to work his forge on the volcanic island of Vulcano, from which the word 'volcano' is derived. Vulcan was essentially a Roman version of Hephaistos, the Greek god of fire and craftsmanship.
The Hawaiians, who inhabit one of the most volcanically active regions on Earth, revered Pele, the goddess of volcanoes, as one of their chief deities. According to their beliefs, a battle between Pele and her elder sister, Namakaokahai, caused the creation of volcanoes, which Pele could control at will. Native American cultures had their own similar tales of competing gods—some of their volcano creators were named Llao and Skell, although different tribes told different versions of the story.
Perhaps the most intriguing volcano worship story comes from the Aztec Empire, where the massive twin volcanoes Popocatepetl and Iztaccihuatl were actually given human characteristics. The Aztecs created effigies of these volcanoes with human faces, treating them with a reverence akin to that reserved for kings or religious figures. This tradition still persists today. The larger of the two mountains is known as Gregorio by the locals, often portrayed as a large man with long, wavy, blond hair.
7. Volcanic Explosivity Index
The Volcanic Explosivity Index (VEI), created in 1982, measures the destructiveness of explosive volcanic eruptions. It ranks each event that meets the criteria on a scale from zero to eight. Eruptions rated from zero to two are common occurrences, happening daily or weekly, while Category Three eruptions, considered “severe,” with plumes reaching up to 15 kilometers (9.32 mi), occur annually.
Categories Four and Five take place every few decades or centuries. These eruptions have catastrophic power, with plumes soaring to 25 kilometers (15.53 mi) or higher. Categories Six and Seven are referred to as “Colossal” and “Super-colossal.” At this magnitude, they’re less like volcanoes and more like enormous, fiery bombs—they can trigger tsunamis, hurl hot rocks hundreds of miles, and blanket the skies with ash. The catastrophic eruption of Krakatoa in 1883, which claimed 36,000 lives due to tsunamis and thermal burns, was a Category Six.
Category Eight, or “Mega-colossal,” eruptions are at least 100 times more powerful than the Krakatoa explosion and can create calderas large enough to encompass entire small countries. Fortunately, no VEI-8 eruptions have occurred in recorded human history. VEI-8 explosions did happen in Yellowstone (640,000 B.C.), Toba (74,000 B.C.), and Taupo (24,500 B.C.), along with several other locations worldwide.
6. Types Of Volcanoes
Many people picture volcanoes as simple mountains spewing magma. However, there are three distinct types of volcanoes, with a phenomenon that is sometimes regarded as a fourth type. Of the three classic mountain-type volcanoes, the cinder cone is what most imagine when they think of a volcano—a hollow mountain with an open summit and a lava pit. The second type, composite volcanoes, are steep, symmetrical peaks made up of multiple layers of lava vents, ash, cinders, and other materials, which during eruptions, often produce massive bombs that fly through the air. The third type, the shield volcano, is most common in Hawaii. These are relatively flat mountains that can stretch up to 160 kilometers (100 miles) wide. The interior of a shield volcano is predominantly filled with thick lava flows.
The fourth type isn’t always considered a volcano at all. It’s an intriguing phenomenon called a lava dome. These domes are huge concentrations of thick lava that, upon eruption, get trapped in a valley or caldera, preventing them from flowing far. Instead, they accumulate into a large dome that cools slowly from the outside. While this might seem harmless, lava domes are sometimes linked to massive, explosive eruptions.
5. Kawah Ijen
Ijen is an active stratovolcano in Java. Due to the site’s high volcanic activity, it has extremely high sulfur concentrations. This has provided the area with a steady source of mining income. It has also given them one of the most hellish lakes in the world.
The volcano’s crater is filled with water. It’s called Kawah Ijen, and it is the world’s largest acid lake. The entire lake has been contaminated by sulfur, transforming it into deadly sulfuric acid. With a pH of 0.5, the water is essentially battery acid. The lake’s corrosive nature can dissolve almost anything, including metal. Its toxic fumes are lethal, and even wearing a gas mask makes breathing difficult.
Because of the lake, eruptions from Ijen are particularly hazardous. Not only does the volcano unleash a torrent of destructive acid, but the draining of the acid lake can trigger extremely dangerous lahars—massive mudslides and debris flows.
4. Paricutin
Volcanoes are particularly terrifying because they can emerge without warning. A prime example is the Mexican volcano Paricutin. In 1943, farmers began hearing strange rumbling noises and noticed a long crack in the earth. Initially, it was only a few inches deep, so they weren't alarmed. However, the rumbling grew louder, the crack expanded, and the ground began to rise. Within hours, sulfur and ash began to spew from the earth. A new volcano had formed overnight.
Although Paricutin started as a small mound just 1.8 meters (6 ft) tall, it grew at an astonishing rate. Within 24 hours, it reached a height of 50 meters (165 ft), and within six days, it had doubled in size. Throughout this time, it continually erupted lava. Despite its small initial size, the lava flow gradually overtook the surrounding areas, including the nearby town of San Juan, forcing the locals to evacuate.
As Paricutin erupted, it gained international fame—geologists and tourists flocked to see the young volcano. They had plenty of time to observe it, too—Paricutin erupted non-stop for nine years. By the time it subsided, it had covered 25.9 square kilometers (10 square miles) of fertile farmland with a thick layer of lava.
3. Effects On Climate
The immediate effects of volcanoes—fire rains, flowing rivers of magma, and the chaos of panic and screams—are horrifying enough, but they are nothing compared to the long-term impacts. In fact, it is believed that natural events like volcanic eruptions could play a major role in climate change.
There are three primary climate-altering effects—the ozone effect (where sunlight breaks down oxygen into ozone in the stratosphere, allowing it to block the sun’s harmful ultraviolet rays), the greenhouse effect (where greenhouse gases become trapped in the atmosphere, causing global warming), and the haze effect (where ash and dust particles are suspended in the atmosphere, blocking sunlight and leading to global cooling). Volcanic eruptions significantly contribute to each of these phenomena—volcanoes emit acids that deplete ozone, release large quantities of carbon dioxide, a well-known greenhouse gas, and discharge ash. Due to the vast amounts of ash they release, their most profound impact is on the haze effect. In a peculiar twist, this means that a major volcanic eruption, rather than warming the planet, can actually lead to a cooling effect.
2. The Gwadar Mud Volcano
On September 24, 2013, a 7.7-magnitude earthquake rocked the seafloor near Pakistan. A few hours later, a new island appeared in the sea. The oval-shaped island, measuring 91 meters (300 feet), emerged as if from thin air, but that was just the start—this island also emits flammable gas, making it hazardous to approach.
This island emerged suddenly from the ocean floor, caused by the appearance of a mud volcano, which releases hot mud rather than traditional lava. As the volcano was submerged, the mud quickly cooled upon contact with the water, solidifying into land.
While scientists continue to investigate the exact cause of the phenomenon—some suggesting other volcanic or tectonic forces may be at play—the local community has their own explanation. They believe the island is a reincarnation of Zalzala Koh (Quake Hill), which disappeared into the ocean 60 to 70 years ago. According to locals, the recent earthquake has brought it back.
1. Mauna Kea And Mauna Loa
When discussing volcanoes, the colossal Mauna Kea and Mauna Loa cannot be overlooked. These enormous shield volcanoes dominate the Hawaiian landscape, and in fact, they make up most of the island's landmass.
The taller of the two, Mauna Kea, stands at 4,205 meters (13,795 ft) above sea level. However, the majority of its bulk is submerged underwater. When measured from the ocean floor, Mauna Kea's height exceeds 9,000 meters (29,500 ft), making it the tallest volcano in the world. In fact, by this measurement, it surpasses even Mount Everest, which stands at just 8,850 meters (29,035 ft). Hawaiians revere the dormant, yet awe-inspiring Mauna Kea as both a symbol of nature's grandeur and a popular ski destination.
In contrast, Mauna Loa remains an active volcano. Although it reaches 4,170 meters (13,680 ft) above sea level, its true height rivals Mauna Kea. Even more imposing, Mauna Loa comprises roughly half of the island of Hawaii. Spanning 96.5 kilometers (60 mi) in length and 48 kilometers (30 mi) in width, this massive volcano has erupted 39 times. Its most recent eruption occurred in 1984, and with current signs of increased activity, it is poised for another eruption.
+ The Screaming Volcano
Volcanoes are inherently terrifying, but the Redoubt Volcano in Alaska took fear to a new level in 2009. Just before it erupted, the volcano began emitting eerie, screaming sounds.
The scream, which can be heard in a faster version here, sounds exactly as one would imagine. It begins with a deep, ominous growl, reminiscent of a colossal stone beast, gradually building into a sharp, terrifying crescendo. This spine-chilling sound serves as the perfect warning from one of nature's most formidable forces. But there's more—experts are still uncertain about what triggered it. While there are a variety of theories involving gases and tectonic stress, until more is known, it may be safest to think of it as the battle cry of Mother Nature herself.
