On Saturday, February 27 at 6:34:14 UTC, a magnitude 8.8 earthquake occurred near Maule, Chile. News is just starting to come in so not sure how much damage there will be from this earthquake.
I will start working on a collection of map and earthquake data overlays for Google Earth. I will continue to add new maps as I find them in the coming days. If you know of any other good maps or data related to the Chile Earthquake that would be good to add this collection, please post a comment.
Just click on the button below to access all of the maps and data. A list of the data is included in the table below, along with a link to the source.
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This Geologic map of Oregon consists of semi-transparent colored polygons that cover the entire state.
Click on a colored area to get the applicable geologic unit symbol. Then open up the Legend to look up the symbol and the characteristics of that geologic unit.
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Credits
Google Earth Library
1991 Geologic Map of Oregon produced by the USGS at a 1:500 scale (Walker, GW and MacLeod NS) and updated in 1992 and 1993.
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The European Digital Archive on Soil Maps of the World (EuDASM) is a massive repository of scanned soil and geologic maps covering large areas of Africa, Asia, Canada, Caribbean Islands, Europe, Latin America, and the United States. The maps were archived over the years by ISRIC – World Soil Information and were recently been scanned and made available online. It looks like there are 1,000’s of maps in the EuDASM digital library.
An engineer working in Kenya for Engineers Without Borders contacted me recently about converting some of the maps into overlays for Google Earth, which I was happy to do. These maps can be accessed from the link at the bottom of this post.
I’m not sure how much of a demand there is out there for Google Earth versions of these maps. It would be great if they were all converted into Google Earth overlays, but that would be a huge undertaking. In the meantime, I’d be more than happy to help out any other individuals or groups out there that could benefit from having some of these maps available in Google Earth. I don’t have the resources or time to do all of the maps in the archive, but I can certainly help out with regional efforts. If you have a specific group of maps that you’d like to see added to the Google Earth overlays, contact me.
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This collection contains 28 1×2 degree geologic maps covering the entire state of California.
The 1:250,000 scale maps were produced in the 1960s and 1970s by the USGS and State of California Division of Mines and Geology.
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USGS ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes throughout the world. The maps show the epicenter of the earthquake and are color coded to show relative ground motion.
Individual maps are created for each earthquake event. Unfortunately, the maps must be accessed via their website. But I have created a sampling of several high profile earthquakes in recent years, which can be accessed from below.
To find the Google Earth KML version of an individual ShakeMap from the USGS Earthquake Hazards Program website, click on the name of the Earthquake, then click on Downloads and look under GIS Data on the right hand column for the KML link. Note, that not all of the earthquakes have a KML version.
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This collection of earthquake data displays large magnitude (6.5 and above) earthquakes dating back to 1900. Each earthquake is represented by a colored circle located at the approximate location of the epicenter. The color of the circle represents the number of fatalities and the size of the circle represents the the magnitude of the earthquake. In addition, the depth of the earthquake is represented by the height of the circle above the earth. In other words, the deeper the earthquake, the higher the circle is above the ground.
The information balloons also contain detailed information about the earthquake and links to webpages with more information. You can also filter the data by different magnitude ranges and use the time slider feature of Google Earth to view the data over time.
Note, when the file first loads you will need to expand the time slider to see some data.
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The USGS Earthquake Hazards Program has compiled a database of earthquake faults in the United States which are believed to be the sources of earthquakes with magnitudes greater than 6 during the past 1,600,000 years. Detailed descriptions of many of the faults is provided via an online database linked to the fault lines in Google Earth.
The original data and KML files were created by the USGS and their partners. I reorganized the original files to make this dataset a little more user friendly. This is about a 7 megabyte download and might take a minute to process.
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Highly detailed digital geologic maps of the US states (not including Alaska and Hawaii) with consistent descriptions (lithology, age, etc) from state to state. The original geologic data was from various sources and compiled by the USGS into KML format.
Click on a polygon to bring up information about that geologic unit. From there you can also access a more detailed description provided online by the USGS.
Each state is covered by a separate map and the size of the maps vary (Texas is 26 megabytes!!!) so give them time to load when you select a state. It may also take a minute or two for Google Earth to process the state map after it downloads. Google Earth may appear to have locked up as it’s crunching the data. You might also want to turn off the Terrain layer if the terrain bleeds through the map.
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