The List

Ready to Blow?

Now that Iceland's Eyjafjallajokull has done its worst, what other dangerous volcanoes should we watch out for?

MERAPI

Location: Central Java, Indonesia

Last major eruption: An earthquake associated with magmatic activity killed more than 5,000 people in May 2006, and an ash eruption in 2007 reached an altitude of nearly 4 miles.

Reasons to worry: Merapi is capable of producing a Plinian eruption (spewing at least 1 cubic kilometer of magma and producing 20 to 50 kilometer-high ash columns) every 1,000 years or so. The last one occurred around 1006 A.D. -- covering the island of Java in a layer of ash and possibly contributing to the demise of the Mataram Hindu Kingdom, which had dominated the area for three centuries.

Merapi is known for its large lava domes (mounds of cooling lava), pyroclastic flows (fast-moving clouds of hot gas and ash), and lahars (rivers of hot mud, rock, and lava). Pyroclastic flows can be particularly dangerous when careening down a mountain's steep sides, like those of Merapi: A large flow in 1930 killed some 1,400 people, and another in 1994 killed 43. It is also one of the most active volcanoes in Indonesia, with more than 25 eruptions in the 20th century alone. Despite the danger, the rapidly expanding metropolis of Yogyakarta lies only 20 miles to the south, putting at least half a million people at risk in the case of a massive eruption.

The trends certainly don't look promising. Geologists think that small eruptions began in the area some 400,000 years ago, but became much more violent 10,000 years ago, particularly in the last 500 years. Now, there are large eruptions every 10 to 15 years -- enough activity to make it the subject of constant monitoring by experts at the International Association of Volcanology and Chemistry of the Earth's Interior.

Dimas Ardian/Getty Images

NYIRAGONGO

Location: Goma, Democratic Republic of the Congo

Last major eruption: An eruption in 2002 produced fast-moving lava flows and is still going today.

Reasons to worry: Nyiragongo, like Merapi, has the characteristic steep sides of a stratovolcano. Whereas typical lava flows rarely kill people due to magma's slow movement, a combination of Nyiragongo's steep mountain sides and unusually low-silica-content magma makes its lava flows uniquely fast-moving. Nyiragongo is also near a major population center, the city of Goma, which is home to a quarter-million people.

When an eruption in 1977 drained the crater of its lava lake, Nyiragongo flooded 20 square kilometers in an hour and killed around 70 people. Lava lake activity resumed once again in 1994 after a fresh eruption. A 2002 eruption sent lava streaming out of fissures on the southern slopes, just north of Goma. The 6-foot-deep river of lava flowed directly through the center of town, destroying 40 percent of its buildings, while killing dozens and displacing half a million people. The volcano is one of the most active in Africa -- Nyiragongo and its sister volcano Nyamuragira are responsible for two-fifths of the African continent's volcano eruptions.

WALTER ASTRADA/AFP/Getty Images

AVACHINSKY

Location: Kamchatka Peninsula, Russia

Last major eruption: 1945, expelled a quarter cubic kilometer of magma

Reasons to worry: Although Avachinsky is not the Kamchatka Peninsula's largest or most active volcano (that would be its larger cousin, Kliuchevskoi), it is still fairly active, having erupted 16 times since 1737. But, like the other volcanoes on this list, what is particularly worrisome is its proximity to the peninsula's largest city, Petropavlovsk, with a population of 200,000. Avachinsky is known for explosive eruptions accompanied by large avalanches and mudslides. As you can see on this map, major portions of the city are vulnerable to pyroclastic flows.

Although the most recent eruption in 2001 was relatively minor, another in 1945 demonstrated the volcano's potential destructive power. That eruption was categorized as a level 4 out of 8 on the Volcanic Explosivity Index (VEI) -- of which there have only been 420 in the past 10,000 years (the Eyjafjallajokull eruption is also a level 4). Ominously, Avachinsky is also classified as a "somma" volcano because its structure -- a caldera with a new cone pushing through its basin -- resembles that of Italy's Mount Vesuvius, whose eruption in 79 A.D. famously destroyed the Roman town of Pompeii.

Photo by Flickr user Robnunn. Used under creative commons license.

 

SANTA MARÍA 

Location: Western highlands of Guatemala

Last major eruption: 1902, around 5,000 dead

Reasons to worry: Santa María's last big blast was one of the four largest volcanic eruptions in the 20th century, registering a VEI magnitude of 6 and leaving a 700-by-1,000 meter crater behind. Approximately 5,000 people in the nearby town of Quetzaltenango died immediately, while many others were later infected with malaria. Although scientists remain unsure of what caused the malaria outbreak, one hypothesis is that the large quantities of ash produced by the eruption killed many birds in the area, which in turn allowed Quetzaltenango's mosquito population to flourish. After a 20-year period of dormancy, the volcano began to erupt once more. These subsequent eruptions, which were smaller, ultimately formed what Guatemalans named Santiaguito, the lava dome that formed around the volcano.

Although Santa María's recent activity doesn't compete with 1902, the volcano remains continuously active and still poses various threats to those living in Quetzaltenango. One such threat is the lahars (a Javanese word for volcanic mudslides) that commonly occur during Guatemala's rainy season. The town of El Palmar, for example, which is located just 6 miles from Santiaguito, was nearly destroyed by lahars during the late 1990s.

Photo by Flickr user guillermogg. Used under creative commons license

TAAL

Location: Batangas province, Luzon island, Philippines

Last major eruption: Oct. 3, 1977, around 100 dead

Reasons to worry: Of the many volcanoes that stretch across the western side of Luzon island, Taal, measuring 311 meters, is surely the most infamous and active. Since 1572 there have been 33 recorded eruptions at Taal, including a massive one in 1754 that, according to the records of Friar Buencochillo, a Spanish Catholic priest who was stationed in the Philippines at the time of the explosion, lasted almost half a year. More recent eruptions occurred in 1911, when more than 1,000 people were killed, and between 1965 and 1977, during which time volcanic base surges and pyroclastic flows destroyed nearby villages and killed some 100 villagers.

Because of Taal's proximity to many populated areas and its active status, the volcano is closely monitored by the Philippine Institute of Volcanology and Seismology from a nearby observatory. This monitoring imperative was made all the more urgent when geologists detected nine volcanic quakes at Taal between June 13 and July 19, 2009. As a result of this increased seismic activity as well as recent increases in sulfur dioxide gas output, the Filipino government has designated Taal a "Level 1 Alert" volcano. Although this warning doesn't imply any knowledge of when the next eruption will take place, it does prohibit people from traveling anywhere within a 6-kilometer radius of the volcano.

JASON GUTIERREZ/AFP/Getty Images

WILD CARD: THE YELLOWSTONE SUPERVOLCANO

Location: Yellowstone National Park, Wyoming, United States

Last major eruption: 638,000 B.C.

Reasons to worry: Huckleberry Ridge Tuff, Lava Creek Tuff, and Mesa Falls Tuff are among the many attractions for visitors to Yellowstone National Park. These rock formations -- produced by ash ejected by volcanic explosions -- were the products of major eruptions that occurred at Yellowstone approximately 2.1 million, 1.3 million, and 640,000 years ago, respectively. Fortunately, it's doubtful the Yellowstone "supervolcano" -- a term given to volcanoes whose explosions measure a magnitude 8 on the VEI -- will be erupting any time soon.

This isn't to say, however, that there hasn't been any anxiety about what the future may hold. Over the past decade, some scientists have been concerned by the movement of the Yellowstone caldera floor, which can be interpreted as a proxy for rising magma chamber pressure and in turn as an indicator of future volcanic activity. Monitoring of upward floor movement, which is caused by the progressive accumulation of magma in volcanoes' subsurface reservoirs, led to a certain level of alarm in 2007 when scientists from the University of Utah and the U.S. Geological Survey published research indicating that the Yellowstone caldera floor had experienced a total "uplift" of an unprecedented 17 centimeters between 2004 and 2007.

So what would happen if Yellowstone did erupt? Around 70,000 years ago another volcano with a VEI magnitude of 8 exploded in Lake Toba, Indonesia. The result? While scientists continue to debate the aftermath of the explosion, many hypothesize that the blast sent the world into a devastating volcanic winter that dramatically changed the course of human evolution. In other words, it will be a pretty bad day.

Photo by Flickr user Alaskan Dude. Used under creative commons license

The List

The World's Most Inappropriate Government Agencies

Five offices that should consider updating their image.

The Backward Classes Bureau

Country: India 
What they do: Provide welfare services for and represent the interests of poor Indians. Approximately 50 percent of the world's second most populous country are members of "backward classes," a rather blunt designation for lower-caste Hindus and other disadvantaged religious and ethnic communities.

The National Commission for Backward Classes (a separate body from the bureau) maintains an extensive list of criteria for what are known as "other backward classes" (OBCs) -- meaning that, frequently, new groups gain or old groups lose the designation.

A key indicator of backwardness is the type of job generally held by members of the given caste/class. Generally, Indians involved in agriculture or traditional craft making, with little parliamentary representation, or of low education or economic status, qualify for OBC designation.

The practice of having an agency for backward-class affairs was written into the 1949 Indian Constitution, and the first commission was created in 1953. In India's 28 states, there are literally hundreds of groups that are classified as OBCs. Backward classes are reserved 27 percent of university placements, an extremely valuable commodity in modern India. Few will disagree with the principles behind the work the bureau is performing, but a name change is definitely in order.

The KGB 
Country: Belarus 
What they do: What the KGB does best. Belarus remains an outlier of Soviet-style authoritarianism in Eastern Europe, and its longtime leader, President Alexander Lukashenko, is commonly known as "Europe's last dictator."

Lending credence to that claim is the fact that Belarus has never bothered to change the name of its State Security Committee, or KGB. Russia at least had the sense to change its notorious spy agency's name to the more anodyne Federal Security Service, but Minsk apparently prefers the naked truth to Orwellian doublespeak.

The Belarusian KGB touts itself as a jack-of-all trades intelligence agency: Its website lists counterintelligence, foreign intelligence, crime prevention (including terrorism), governmental operations security, and international law enforcement cooperation. The KGB also claims to have excellent relations with Interpol.

It seems, however, that the KGB is not quite up to par with the brutality of its Soviet predecessor. After anti-government activist Andrey Kuzminsky displayed the banned national flag favored by the opposition in a protest, agents descended on his house for interrogation -- but left him with a mere warning. Lest it seems the KGB isn't all that bad, though, the bureau regularly raids media outlets and bans what it deems "extremist materials." The State Department's 2009 Human Rights Report accuses the KGB of beating detainees, gross privacy abuses, whitewashing anti-Semitic crimes and materials, interfering with NGO activities, and a whole host of other human rights violations.

Central Propaganda Department  
Country: China 
What they do: Enforce proper thinking. The ruling Communist Party greatly fears a potential free flow of information to its populace and has created a massive network of censorship to avoid such a possibility. State propaganda is an integral aspect of most authoritarian governments -- and a good number of democratic ones for that matter -- but rarely is the agency behind these efforts so transparent about its intentions.

Interestingly, the department is not officially part of the Chinese government, and is given no legal authority to enforce media censorship -- but according to a 2005 report by the U.S. Congressional-Executive Commission on China, it still screens content to ensure that "anything that is inconsistent with the Communist Party's political dogma" never sees the light of day and works closely with state authorities tasked with restricting information.

The department's main strategy to restrict content is the encouragement of self-censorship among Chinese journalists. News outlets are expected to take their cues on what constitutes acceptable reporting, and what the party wants reported, through comments made by party officials. Furthermore, editors are forced to attend "indoctrination sessions." The department also handles "red tourism," a package of the most important sites in China, as perceived by the party, for visitors to see and maintains China's version of Civil War battlefield sites, the party's "patriotic education" bases.

Committee for the Propagation of Virtue and the Prevention of Vice

Country: Saudi Arabia

What they do: Enforce a strict interpretation of sharia. The committee is tasked with enforcing the Saudi state's hard-line interpretation of religious law, looking to punish those guilty of actions deemed "un-Islamic."

The mutaween (religious police), charged with carrying out the dictates of the committee are all too eager to crack down on homosexuals, interaction between single men and women, and Saudis straying from Islam's dietary restrictions, or regulate anything else they so desire. On the committee's official government website, some of the most recent queries dealt with whether Muslims are allowed to participate in April Fools Day, whether watching sitcoms is acceptable, or if Saudis can use mobile-phone ring tones (no, no, and no, respectively).

The committee became internationally infamous for causing the deaths of 15 schoolgirls, killed in a 2002 fire. The girls weren't allowed out of the building because they weren't wearing proper Islamic dress -- some were beaten as they tried to escape the flames. In early April, the committee had sentenced a Lebanese "sorcerer" to death, but he was granted a stay of execution at the last moment. Despite the propagation of vice and virtue committees elsewhere, such as in Afghanistan and the Gaza Strip, the powers of the Saudi agency have been scaled back in the last few years: the mutaween are no longer able to interrogate those suspected of un-Islamic behavior, and they lost their carte blanche legal authority due to outcry over the death of two Saudis in their custody.

Ministry of Lands, Land Reform, and Rural Resettlement 
Country: Zimbabwe 
What they do: Ruin the economy of a once-promising country. Upon gaining independence in 1980, Zimbabwe appeared to be an African success story, with a burgeoning agricultural sector and modest economic growth. Today, agricultural production has plummeted, making the former grain exporter heavily dependent on food aid.

Much of the current disaster has to do with President Robert Mugabe's disastrous land reform and redistributive policies. The ministry's website claims the program "revolves around land reform where the systematic dispossession and alienation of the land from the black indigenous people during the period of colonial rule, are adequately addressed." The ministry also promises to "enhance agricultural productivity, leading to industrial and economic empowerment and macro economic growth in the long term." Reality tells a different story. Inflation levels were reported as high as 6.5 quindecillion novemdecillion percent before the country encouraged the use of foreign currencies in 2009. Unemployment levels are as high as 80 percent. Agricultural production since land reform began has fallen by more than half and approximately 1 million refugees have flooded neighboring South Africa in the last few year

Veterans of the Zimbabwean wars of independence (Mugabe was a major figure in the struggle) against the white-dominated regime in then-Rhodesia were encouraged to seize commercially white-owned farms by force. Around 4,000 white farmers have had their land expropriated and redistributed in the last 10 years. Promises of state assistance for the new farmers have not been kept, decimating Zimbabwe's agricultural production and turning this once breadbasket into a basketcase.

MANPREET ROMANA/AFP/Getty Images, ALEXEY GROMOV/AFP/Getty Images, FREDERIC J. BROWN/AFP/Getty Images, KHALED DESOUKI/AFP/Getty Images, ALEXANDER JOE/AFP/Getty Images