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Map: The World’s Network of Submarine Cables

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submarine cable network map

Map: The World’s Network of Submarine Cables

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Submarine cables are decidedly uncool. But while they lack the flashiness of satellites, it’s actually the world’s vast network of fiber optic cables that does most of the heavy lifting in keeping our information flowing from place to place.

The map above, by Ben Pollock, is a comprehensive look at the world’s cable network, as well as some of the impressive information on bandwidth and maintenance jurisdictions.

The History of Submarine Cables

The first transcontinental cable – laid in 1858 – ran from Ireland to Newfoundland, and made telegraph communication possible between England and Canada.

atlantic cable map

Though communication was expensive and limited to only a few words per hour at best, the speed of communication was unparalleled at the time.

“Instant” communication was a huge commercial hit, and it prompted a cable laying boom. By the year 1900, there were already over 130,000 miles (200,000 km) of cable running along the ocean floor!

Beyond the Telegram

The first transatlantic telephone cables went into service in 1956, and 32 years later, the first fiber optic cable connected Europe and America.

Fiber optic technology made transmitting massive quantities of information fast and cost-effective. The level of speed has only increased with time – and now cables can transmit 160 terabits per second.

cable cross section

(One common misconception is that most of our information is transmitted through satellites, but fiber optic cables actually form the backbone of the internet, transmitting about 99% of all data.)

Today, there are over 420 submarine cables in service, stretching over 700,000 miles (1.1 million km) around the world. The network is clustered around information economy hotspots like Singapore and New York, but cables connect to just about anywhere.

Remote Pacific islands, and even obscure ocean towns in the Arctic Circle have such connections.

Who’s Footing the Bill?

Traditionally, private companies or consortiums formed by telecom carriers owned cables, but that model is changing. Content providers such as Google and Microsoft are increasingly major investors in new cable. Cloud computing is the big demand driver of this new private cable boom.

As more millions more people around the world adopt cloud computing, we’ll be certain to see even more cables criss-crossing the world’s oceans in the near future.

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Maps

Mapped: The Salary Needed to Buy a Home in 50 U.S. Metro Areas

The annual salary needed to buy a home in the U.S. ranges from $38k to $255k, depending on the metropolitan area you are looking in.

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The Salary Needed to Buy a Home in 50 U.S. Metro Areas

Over the last year, home prices have risen in 49 of the biggest 50 metro areas in the United States.

At the same time, mortgage rates have hit seven-year highs, making things more expensive for any prospective home buyer.

With this context in mind, today’s map comes from HowMuch.net, and it shows the salary needed to buy a home in the 50 largest U.S. metro areas.

The Least and Most Expensive Metro Areas

As a reference point, the median home in the United States costs about $257,600, according to the National Association of Realtors.

 Median Home PriceMontly Payment (PITI)Salary Needed
National$257,600$1,433.91$61,453.51

With a 20% down payment and a 4.90% mortgage rate, and taking into account what’s needed to pay principal, interest, taxes, and insurance (PITI) on the home, it would mean a prospective buyer would need to have $61,453.51 in salary to afford such a purchase.

However, based on your frame of reference, this national estimate may seem extremely low or quite high. That’s because the salary required to buy in different major cities in the U.S. can fall anywhere between $37,659 to $254,835.

The 10 Cheapest Metro Areas

Here are the cheapest metro areas in the U.S., based on data and calculations from HSH.com:

RankMetro AreaMedian Home PriceMonthly Payment (PITI)Salary Needed
#1Pittsburgh$141,625$878.73$37,659.86
#2Cleveland$150,100$943.55$40,437.72
#3Oklahoma City$161,000$964.49$41,335.41
#4Memphis$174,000$966.02$41,400.93
#5Indianapolis$185,200$986.74$42,288.92
#6Louisville$180,100$987.54$42,323.15
#7Cincinnati$169,400$1,013.37$43,429.97
#8St. Louis$174,100$1,031.70$44,215.56
#9Birmingham$202,300$1,040.51$44,593.35
#10Buffalo$154,200$1,066.29$45,698.05

After the dust settles, Pittsburgh ranks as the cheapest metro area in the U.S. to buy a home. According to these calculations, buying a median home in Pittsburgh – which includes the surrounding metro area – requires an annual income of less than $40,000 to buy.

Just missing the list was Detroit, where a salary of $48,002.89 is needed.

The 10 Most Expensive Metro Areas

Now, here are the priciest markets in the country, also based on data from HSH.com:

RankMetro AreaMedian Home PriceMonthly Payment (PITI)Salary Needed
#1San Jose$1,250,000$5,946.17$254,835.73
#2San Francisco$952,200$4,642.82$198,978.01
#3San Diego$626,000$3,071.62$131,640.79
#4Los Angeles$576,100$2,873.64$123,156.01
#5Boston$460,300$2,491.76$106,789.93
#6New York City$403,900$2,465.97$105,684.33
#7Seattle$489,600$2,458.58$105,367.89
#8Washington, D.C.$417,400$2,202.87$94,408.70
#9Denver$438,300$2,139.02$91,672.45
#10Portland$389,000$1,987.37$85,173.08

Topping the list of the most expensive metro areas are San Jose and San Francisco, which are both cities fueled by the economic boom in Silicon Valley. Meanwhile, two other major metro areas in California, Los Angeles and San Diego, are not far behind.

New York City only ranks in sixth here, though it is worth noting that the NYC metro area extends well beyond the five boroughs. It includes Newark, Jersey City, and many nearby counties as well.

As a final point, it’s worth mentioning that all cities here (with the exception of Denver) are in coastal states.

Notes on Calculations

Data on median home prices comes from the National Association of Realtors and is based on 2018 Q4 information, while national mortgage rate data is derived from weekly surveys by Freddie Mac and the Mortgage Bankers Association of America for 30-year fixed rate mortgages.

Calculations include tax and homeowners insurance costs to determine the annual salary it takes to afford the base cost of owning a home (principal, interest, property tax and homeowner’s insurance, or PITI) in the nation’s 50 largest metropolitan areas.

Standard 28% “front-end” debt ratios and a 20% down payments subtracted from the median-home-price data are used to arrive at these figures.

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Data Visualization

Visualizing the Happiest Country on Every Continent

Where are the happiest, least happy, and fastest improving countries worldwide? We’ve broken down this annual ranking by region to answer that question.

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Visualizing the Happiest Country on Every Continent

The state of our world is shifting beneath our feet — economics alone no longer equate to satisfaction, let alone happiness.

Today’s visualization pulls data from the seventh World Happiness Report 2019, which ranks 156 countries by their happiness levels. We’ve previously shown the variables used to measure happiness in this report, but here, we break down rankings by continent and region for a clearer picture of where each country lies.

happiness north america map

North America

Unhappy Americans have caused the country to tumble in rankings for a third straight year, despite evidence that things are generally looking up. The report attributes much of this erosion to a variety of addictions: opioids, workaholism, gambling, internet, exercise, and even shopping are among them.

Haiti is the least happy country in this region. The country is still struggling to rebuild sanitation infrastructure and other educational and healthcare programs, despite foreign aid.

In brighter news, Nicaragua is seeing great gains in happiness levels, as the country makes a concentrated effort to reduce poverty.

happiness south america map

South America

In South America, the majority of countries cluster around a score of six on the happiness scale.

The one notable exception to this is Venezuela, which is faltering in both happiness rank and regional improvement. The nation’s hyperinflation and humanitarian crisis both show no signs of slowing down.

happiness europe map

Europe

Finland comes out on top of the world for a second consecutive year, and it’s not difficult to see why. The country boasts a stable work-life balance, bolstered by a comprehensive welfare state.

Scandinavian countries appear among the happiest nations for similar very reasons — elevating the region’s score to 16% above the global average.

On the flip side, Ukraine is the unhappiest, likely intensified by the ongoing war in southeastern Donbass. Greece is the least improved, as it continues to heal from the sovereign debt crisis.

happiness middle east map

Middle East and Central Asia

Uzbekistan shows the swiftest regional improvement, as the country has launched an ambitious reform agenda for greater economic, social, and political development and openness.

Unfortunately, Syria’s continued civil war comes with a heavy price for its people and economy, as does the Palestinian-Israeli conflict — although the latter doesn’t seem to impact Israel’s happiness ranking. In fact, Israel finished with the 13th best score, globally.

happiness asia 2019

Rest of Asia and Oceania

In East Asia, the average happiness score is quite close to the global average, with Taiwan standing out as the happiest country.

Singapore out-competes other countries within Southeast Asia, despite only being home to a population of 5.6 million. Its neighbor Malaysia, however, plunged from 35th to 80th place.

Oceania stands alone – Australia and New Zealand are closely matched in their individual happiness scores.

happiness africa map

Africa

The African continent as a whole fares 19.2% below the global average. But there are silver linings, with strong strides towards improvement being made.

Mauritius benefits from good governance and a buoyant tourism sector — with visitor arrivals equal to the island’s 1.3 million population. Meanwhile, Benin has soared in the rankings, and is supported by the World Bank in key structural reforms such as poverty reduction and access to basic services.

What could these rankings look like in another ten years?

Notes: The Africa map was updated to show more country scores. The report only covers 156 countries, so “Oceania” only refers to Australia and New Zealand in this instance.

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