- 1. Select data type and date
Select a data type, years and months from and
The earthquakes which occurred in the selected years and months are shown if they are registered.
- 2. Select an earthquake event
Then selecting an earthquake event, you will see the strong-motion data at the strong-motion data list. you can see the analytical images as thumbnail. Now you are ready to download strong-motion data listed in the data list.
- 3. Download all strong-motion data
Click to download all strong-motion data of the earthquake compressed into a single tar.gz archive. The largest one of the archive file has tens of megabyte size, so if you do not want all data, choose data by the steps shown below.
- 4. Choose a strong-motion data
Select a strong-motion data in the data list, you can see the images of acceleration wave and velocity rsp. spectrum as thumbnail . Now you are ready to download the data.
- 5. Download strong-motion data of all channels
Click , you can download all channels data compressed into a single tar.gz archive.
- 6. Other information
- * Sort the list
Clicking anchors on the list box, you can see the list sorted by a specific key in ascending order. If you click the anchor again, the list is sorted in descending order.
- * Change thumbnail image
Using the pull-down menu below a thumbnail image, you can change the thumbnail image.
- * Enlarge thumbnail image
If you click on the thumbnail image, the image will be shown in 100% size on the new window. Then clicking PostScript File on the new window , you can download PostScript file of the image.
- * Resize the window
Resizing the Netscape Navigator window may cause an error to clear search parameters. In this case, please retry the search.
- * Unauthorized raw data
When a large earthquake occurs, you can download unauthorized raw data on this page. A notice display at the earthquake list like as "Quick reported Earthquake".
- * Images of unauthorized raw data
The image of unauthorized raw data is registered after the acceleration data.
The paste-up and measuring seismic intensity is not registered.
- * About the format of the download file
to download the file format select the .
- * Download Hi-net EVENT DATA
, you can download Hi-net seismic event data. But you are not able to download when there is not the Hi-net event data yet.
- * Download F-net WAVE DATA
, you can download the F-net continuous waveform data of 5 minutes length; from 1 minute before earthquake.
If the earthquake selected have occured more than two weeks before, search page of F-net download data will be shown.
- * Animation
Select the type of animation from the display screen that displayed by clicking ,
you can play the animation of the earthquake event chosen from the earthquake list.
- * Detail retrieval
Click >>Select for earthquake and download data to
Select for earthquake and download data