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About the format of seismic wave meter data
Last Updated December 16, 2021
The format of the earthquake waveform data provided is the same as that of the Institute of Disaster Prevention Science and Technology (external site). The contents are as follows.
| Items | Example of value | Explanation |
|---|---|---|
| Origin Time | 2002/07/24 05:05:00 | ← Earthquake occurrence time |
| Lat. | 37.30 | ← Position (latitude) |
| Long. | 142.40 | ← Earthquake position (longitude) |
| Depth. (km) | 20 | ← Epicenter depth |
| Mag. | 5.8 | ← magnitude |
| Station Code | ab07g | ← Observation point code |
| Station Lat. | 35.5494 | ← Observation point position (latitude) |
| Station Long. | 139.5393 | ← Observation point position (longitude) |
| Station Height(m) | 28 | ← Observation point altitude |
| Record Time | 2002/07/24 05:06:56 | ← Observation start time |
| Sampling Freq(Hz) | 200Hz | ← Sampling frequency |
| Duration Time(s) | 92.000000 | ← Measurement time |
| Dir. | E-W | ← Direction |
| Scale Factor | 2000(gal)/8388608 | ← Scale factor |
| Max. Acc. (gal) | 2 | ← Maximum acceleration |
| Last Correction | 2002/07/24 05:00:00 | ← Final correct time |
| Memo. | component-corrected | ← Memo |
| ↓Earthquake acceleration waveform data -289666 -289819 -289948 -290089 -290207 -290218 -290207 -290238 -290277 -290367 -290450 -290512 -290677 -290842 -290971 -291124 -291312 -291473 -291547 -291567 -291520 -291418 -291320 -291202 -291132 -291042 -290955 -290842 -290759 -290724 -290642 -290571 -290544 -290489 -290403 -290320 -290254 -290207 -290156 -290073 -290066 -290003 -289936 -289807 -289736 -289630 -289532 -289509 ．．．．． | ||
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