Skip to main content

Mapping Seismic Activity: Vulnerable vs. Non-Vulnerable Regions

The study of plate tectonics offers an interesting view on our planet’s past, present, and future seismic activity. The larger and expanded map indicates the probable intensity of earthquakes that could happen in the next 50 years, starting from 2004. The green lines represent the earth’s plate boundaries and the shaded colors ranging from grey to orange represent the probable intensity of an earthquake in that specific region. Each red dot on the map represents a recorded seismic event since 1900 that had a Seismic Moment Magnitude above 8.5. Dr. Jean-Paul Rodrigue, the author of this map, explains that it is a matter of when, rather than if, that these endangered areas face some sort of seismic activity in the near future.

Although there are vulnerable areas in middle Asia, the Middle East, and Europe, with very distinguishable seismic activity, such as Italy for example, most areas that have had either previous or predicted earthquakes exist on the edges of the Pacific Ocean in a region called the Ring of Fire, depicted in the zoomed-in second map. This horseshoe shaped border of most of the Pacific Ocean stretches for 40,000 km (≈25,000 miles) and contains 75% of the earth’s active and dormant volcanoes. Notice that out of the documented 16 earthquakes that had magnitudes higher than 8.5, 12 occurred almost directly on the Pacific Ring of Fire. This is no coincidence. A collection of convergent, divergent, and transform boundaries create this highly active ring where powerful earthquakes shake the ground and active volcanoes reshape terrains.

Recently within the Ring of Fire, Asia has suffered from catastrophic earthquakes and tsunamis generated from deep-sea earthquakes. Mount Ruapehu in New Zealand has continued to be one of the most active volcanoes on earth with consistent annual eruptions, and Chile has had some of the most spontaneous seismic activity in the world. It is hard to not become a little daunted by the events that have occurred within the Ring of Fire, especially for those who reside directly on and near the plate boundaries. One cannot help but to question where the next site of devastation will occur. With that said; continued research and mapping of seismic activity will generate more data and scientific breakthroughs which in turn will increase the predictability of dangerous seismic activity.

–Pete D
Photo Credits: 1. Dr. Jean-Paul Rodrigue, Hofstra University 2. Dr. Jean-Paul Rodrigue, Hofstra University

References: 1. 2. 3. 4.


This post may contain affiliate links. As an Amazon Associate, I earn from qualifying purchases.


Popular posts from this blog

Find cities with similar climate

This map has been created using The Global environmental stratification. The Global environmental stratification (GEnS), based on statistical clustering of bioclimate data (WorldClim). GEnS, consists of 125 strata, which have been aggregated into 18 global environmental zones (labeled A to R) based on the dendrogram. Interactive map >> Via Related posts: -  Find cities with similar climate 2050 -  How global warming will impact 6000+ cities around the world?

The Appalachian Mountains, the Scottish Highlands, and the Atlas Mounts in Africa were the same mountain range

The Central Pangean Mountains was a prominent mountain ridge in the central part of the supercontinent Pangaea that extends across the continent from northeast to southwest through the Carboniferous , Permian Triassic periods. The mountains were formed due to a collision within the supercontinents Gondwana and Laurussia during the creation of Pangaea. It was comparable to the present Himalayas at its highest peak during the start of the Permian period. It isn’t easy to assume now that once upon a time that the Scottish Highlands, The Appalachian Mountains, the Ouachita Mountain Range, and the Atlas Mountains in northwestern Africa are the same mountains , once connected as the Central Pangean Mountains.

Human Emotions Visualized

Despite significant diversity in the culture around the globe, humanity's DNA is 99.9 percent alike. There are some characteristics more primary and typical to the human experience than our emotions. Of course, the large spectrum of emotions we can feel can be challenging to verbalize. That's where this splendid visualization by the Junto Institute comes in. This visualization is the newest in an ongoing attempt to categorize the full range of emotions logically. Our knowledge has come a long route since William James suggested 4 primary emotions: fear, grief, love, and rage. These kernel emotions yet form much of the basis for current frameworks. The Junto Institute's visualization above classifies 6 basic emotions: fear, anger, sadness, surprise, joy, love More nuanced descriptions begin from these 6 primary emotions, such as jealousy as a subset of anger and awe-struck as a subset of surprise. As a result, there are 102 second-and third-order emotions placed on this emo