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Visualizing the Power and Frequency of Earthquakes

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Earthquake Magnitude

Earthquake Magnitude

Visualizing the Power and Frequency of Earthquakes

The surface of our planet is in a constant state of creation and destruction as the plates of the Earth collide. It is this movement of the Earth’s crust that causes earthquakes, sending tremors throughout the world.

Today’s graphic is inspired by a classic USGS diagram that tracks the scale and frequency of earthquakes.

Shifting Foundations

Earthquakes occur because the crust of the Earth is made up of several plates. The boundaries of these plates create faults that can run into one another.

Earthquakes describe both the mechanism that causes a sudden stress release along plate boundaries and also the ensuing ground shaking.

They occur when stress builds up along a tectonic fault. This stress causes the two surfaces of the fault, which had previously been stuck together due to friction, to suddenly move, or slide, releasing energy in the form of seismic waves.

Measuring an Earthquake’s Impact

There are three factors to assess the impact of Earthquakes – magnitude, energy, and intensity.

Magnitude is a number most commonly associated with the Richter scale, describing the size of an Earthquake on a scale from 0 to 10 – the latter of which is the maximum motion recorded by a seismograph. Each increase by one on the scale represents a tenfold increase in the amplitude. There are over a million tremors around the planet each year, but it’s not until an earthquake reaches a magnitude of 4 that humans can typically feel it.

Another way to measure the size of an earthquake is by how much energy it releases. The amount of energy radiated by an earthquake is a measure of the potential for damage to man-made structures.

An earthquake releases energy at various frequencies, and in order to calculate accurately, you have to include all frequencies of shaking for the entire event. Some research suggests technology could harness this energy for power generation.

Intensity describes the severity of an earthquake with a qualitative evaluation of its effects on the Earth’s surface and on the built environment. An earthquake may have a high magnitude but if a city or landscape experiences little damage, it can be said that the intensity is low. The Modified Mercalli Intensity Scale measures this intensity.

The World’s Largest Earthquakes by Magnitude

Prior to the development and use of seismographs, around 1900, scientists could only estimate magnitudes, based on historical reports of the extent and severity of damage.

DateLocationMagnitude
May 22, 1960Valdivia, Chile9.4-9.6
March 27, 1964Prince William Sound, Alaska9.2
Dec. 26, 2004Indian Ocean, Sumatra, Indonesia9.1
March 11, 2011Pacific Ocean, Tohoku Region, Japan9.1
July 8, 1730Valparaiso, Chile9.1-9.3 (est.)
Nov. 4, 1952Kamchatka, Russia9
Aug. 13, 1868Arica, Chile8.5-9.0 (est.)
January 26, 1700Pacific Coast, Modern Day British Columbia8.7-9.2 (est.)
April 2, 1762Chittagong, Bangladesh8.8 (est.)
Nov. 25, 1833Sumatra Indonesia8.8 (est.)

Earthquakes are a fact of life on Earth and mark distinct moments in history. One would think given our knowledge of earthquakes, that humans would avoid these locations – however, the very faults of the Earth also create its greatest advantages.

Living with Your Faults

It’s extremely common to find human settlements along the fault lines where earthquakes occur most frequently. Some could say that this is because these decisions were made before a complete understanding of science enabled us to know the potential risks involved.

However, a recent scientific study reveals that there may be more to the pattern than previously thought. Tectonically active plates may have produced greater biodiversity, more food, and water for our human predecessors.

Certain landscape features formed by tectonic processes such as cliffs, river gorges, and sedimentary valleys create environments that support access to drinking water, shelter, and an abundant food supply.

This inherent problem reveals that humans are more connected to their environments than previously thought. It comes down to a question of how well humans can adapt their lifestyle and built environments to a dynamic planet.

Now let’s worry about the asteroids

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Energy

Visualizing the Range of EVs on Major Highway Routes

We visualize how far popular EV models will take you on real-world routes between major cities, and which are the most cost effective.

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The Range of EVs on Major Highway Routes

Between growing concerns around climate change, new commuting behaviors due to COVID-19, and imminent policy changes, the global transition to electric vehicles (EVs) is well under way.

By the year 2040, sales of electric vehicles are projected to account for 58% of new car sales, up from just 2.7% currently.

But switching from a gasoline car to an electric one is not seamless. With charging and range capacities to consider, and the supporting infrastructure still being slowly rolled out in many parts of the world, understanding the realities of EV transportation is vital.

Above, we highlight 2020 all-electric vehicle range on well-recognized routes, from California’s I-5 in the U.S. to the A2 autobahn in Germany. The data on estimated ranges and costs are drawn from the U.S. EPA as well as directly from manufacturer websites.

The EV Breakdown: Tesla is King of Range

For many consumers, the most important aspect of an electric vehicle is how far they can travel on a single charge.

Whether it’s for long commutes or out-of-city trips, vehicles must meet a minimum threshold to be considered practical for many households. As the table below shows, Tesla’s well-known EVs are far-and-away the best option for long range drivers.

VehicleRange (miles)Range (km)MSRPCost per mile
Tesla Model S Long Range Plus402647$74,990$186.54
Tesla Model X Long Range Plus351565$79,990$227.89
Tesla Model S Performance348560$94,990$272.96
Tesla Model 3 Long Range322518$46,990$145.93
Tesla Model Y Long Range316509$49,990$158.20
Tesla Model X Performance305491$99,990$327.84
Tesla Model 3 LR Performance299481$54,990$183.91
Tesla Model Y Performance291468$59,990$206.15
Polestar 2275443$59,900$217.82
Chevrolet Bolt EV259417$36,620$141.39
Hyundai Kona Electric258415$37,190$144.15
Tesla Model 3 Standard Range Plus250402$37,990$151.96
Kia Niro EV239385$39,090$163.56
Jaguar I-PACE234377$69,850$298.50
Nissan LEAF e+ S226364$38,200$169.03
Audi e-tron Sportback218351$69,100$316.97
Nissan LEAF e+ SV/SL215346$39,750$184.88
Audi e-tron204328$65,900$323.04
Porsche Taycan 4S Perf Battery Plus203327$112,990$556.60
Porsche Taycan Turbo201323$153,510$763.73
Porsche Taycan Turbo S192309$187,610$977.14
Hyundai IONIQ Electric170274$33,045$194.38
BMW i3153246$44,450$290.52
Nissan LEAF149240$31,600$212.08
MINI Cooper SE110177$29,900$271.82
Fiat 500e84135$33,460$398.33

In an industry where innovation and efficiency are vital, Tesla’s first-mover advantage is evident. From the more affordable Model 3 to the more luxurious Model S, the top eight EVs with the longest ranges are all Tesla vehicles.

At 402 miles (647 km), the range of the number one vehicle (the Tesla Model S Long Range Plus) got 127 miles more per charge than the top non-Tesla vehicle, the Polestar 2—an EV made by Volvo’s standalone performance brand.

Closer Competition in Cost

Though Tesla leads on overall range and battery capacity, accounting for the price of each vehicle shows that cost-efficiency is far more competitive among brands.

By dividing the retail price by the maximum range of each vehicle, we can paint a clearer picture of efficiency. Leading the pack is the Chevrolet Bolt, which had a cost of $141.39/mile of range in 2020 while still placing in the top 10 for range with 259 miles (417 km).

Just behind in second place was the Hyundai Kona electric at $144.15/mile of range, followed by the Tesla Model 3—the most efficient of the automaker’s current lineup. Rounding out the top 10 are the Nissan LEAF and Tesla Model S, but the difference from number one to number ten was minimal, at just over $45/mile.

Top 10 All-Electric Vehicles by Cost Efficiency
VehicleCost per mile
Chevrolet Bolt EV$141.39
Hyundai Kona Electric$144.15
Tesla Model 3 Long Range$145.93
Tesla Model 3 Standard Range Plus$151.96
Tesla Model Y Long Range$158.20
Kia Niro EV$163.56
Nissan LEAF e+ S$169.03
Tesla Model 3 LR Performance$183.91
Nissan LEAF e+ SV/SL$184.88
Tesla Model S Long Range Plus$186.54

Higher Ranges and Lower Costs on the Horizon

The most important thing to consider, however, is that the EV industry is entering a critical stage.

On one hand, the push for electrification and innovation in EVs has driven battery capacity higher and costs significantly lower. As batteries account for the bulk of weight, cost, and performance in EVs, those dividends will pay out in longer ranges and greater efficiencies with newer models.

Equally important is the strengthening global push for electric vehicle adoption. In countries like Norway, EVs are already among the best selling cars on the market, while adoption rates in China and the U.S. are steadily climbing. This is also being impacted by policy decisions, such as California’s recent announcement that it would be banning the sale of gasoline cars by 2035.

Meanwhile, the only thing outpacing the growing network of Tesla superchargers is the company’s rising stock price. Not content to sit on the sidelines, competing automakers are rapidly trying to catch up. Nissan’s LEAF is just behind the Tesla Model 3 as the world’s second-best-selling EV, and Audi recently rolled out a supercharger network that can charge its cars from 0% to 80% at a faster rate than Tesla.

As the tidal wave of electric vehicle demand and adoption continues to pick up steam, consumers can expect increasing innovation to drive up ranges, decrease costs, and open up options.

Correction: A previous version of this graphic showed a European route that was the incorrect distance.

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Markets

3D Map: The U.S. Cities With the Highest Economic Output

The total U.S. GDP stands at a whopping $21 trillion, but which metro areas contribute to the most in terms of economic output?

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US Cities by Economic Output

3D Map: The U.S. Cities With the Highest Economic Output

At over $21 trillion, the U.S. holds the title of the world’s largest economy—accounting for almost a quarter of the global GDP total. However, the fact is that a few select cities are responsible for a large share of the country’s total economic output.

This unique 3D map from HowMuch puts into perspective the city corridors which contribute the most to the American economy at large.

Top 10 Metros by Economic Output

The visualization pulls the latest data from the U.S. Bureau of Economic Analysis (BEA, 2018), and ranks the top 10 metro area economies in the country.

One thing is immediately clear—the New York metro area dwarfs all other metro area by a large margin. This cluster, which includes Newark and Jersey City, is bigger than the metro areas surrounding Los Angeles and Chicago combined.

RankMetro AreaState codesGDP (2018)
#1New York-Newark-Jersey CityNY-NJ-PA $1.77T
#2Los Angeles-Long Beach-AnaheimCA$1.05T
#3Chicago-Naperville-ElginIL-IN-WI$0.69T
#4San Francisco-Oakland-BerkeleyCA$0.55T
#5Washington-Arlington-AlexandriaDC-VA-MD-WV$0.54T
#6Dallas-Fort Worth-ArlingtonTX$0.51T
#7Houston-The Woodlands-Sugar LandTX$0.48T
#8Boston-Cambridge-NewtonMA-NH$0.46T
#9Philadelphia-Camden-Wilmington PA-NJ-DE-MD$0.44T
#10Atlanta-Sandy Springs-AlpharettaGA$0.40T
Total GDP$6.90T

Coming in fourth place is San Francisco on the West Coast, with $549 billion in total economic output each year. Meanwhile in the South, the Dallas metroplex brings in $478 billion, placing it sixth in the ranks.

It’s worth noting that using individual metro areas is one way to view things, but geographers also think of urban life in broader terms as well. Given the proximity of cities in the Northeast, places like Boston, NYC, and Washington, D.C. are sometimes grouped into a single megaregion. When viewed this way, the corridor is actually the world’s largest in economic terms.

U.S. States: Sum of Its Parts

Zooming out beyond just these massive cities demonstrates the combined might of the U.S. in another unique way. Tallying all the urban and rural areas, every state economy can be compared to the size of entire countries.

US States and Country Comparison by GDP 2018

According to the American Enterprise Institute, the state of California brings in a GDP that rivals the United Kingdom in its entirety.

By this same measure, Texas competes with Canada in terms of pure economic output, despite a total land area that’s 15 times less that of the Great White North.

With COVID-19 continuing to impact parts of the global economy disproportionately, how will these kinds of economic comparisons hold up in the future?

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