MLchartDataset catalogue

Shadow zone

Term · Oil and gas · MLC-T-OAG-003347

An area on the Earth's surface where seismic waves from an earthquake are not detected by seismographs. This phenomenon occurs due to the refraction and reflection of P-waves and S-waves at the core-mantle boundary. The P-wave shadow zone extends from about 104 to 140 degrees from the epicenter, while the S-wave shadow zone is larger, covering more than 104 degrees.

Table 1. Record
IdentifierMLC-T-OAG-003347
FieldOil and gas
SubjectGeophysics
Record as JSON 
{
  "id": "MLC-T-OAG-003347",
  "term": "Shadow zone",
  "field": "Oil and gas",
  "definition": "An area on the Earth's surface where seismic waves from an earthquake are not detected by seismographs. This phenomenon occurs due to the refraction and reflection of P-waves and S-waves at the core-mantle boundary. The P-wave shadow zone extends from about 104 to 140 degrees from the epicenter, while the S-wave shadow zone is larger, covering more than 104 degrees.",
  "subject": "Geophysics",
  "url": "https://mlchart.com/terminology/oil-and-gas/shadow-zone/"
}

Record 3,556 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.