Definition of Mohorovičić discontinuity in English:

Mohorovičić discontinuity

Pronunciation /ˌmōhəˈrōviˌCHiCH ˌdiskänt(ə)nˌ(y)o͞oədē/ /ˌmoʊhəˈroʊvɪˌtʃɪtʃ ˌdɪskɑnt(ə)nˌ(j)uədi/


  • The boundary surface between the earth's crust and the mantle, lying at a depth of about 6–7 miles (10–12 km) under the ocean bed and about 24–30 miles (40–50 km) under the continents.

    • ‘The sharp boundary between the crust and mantle is called the Mohorovicic discontinuity or Moho.’
    • ‘Wide-angle reflection and refraction seismic data can be used to image the Mohorovicic discontinuity and provide information on the velocity structure and physical properties of the crust.’
    • ‘These values suggest that the Mohorovicic discontinuity remains relatively deep, 40 to 45 km, beneath western half of the transect.’
    • ‘The Mohorovicic discontinuity, or Moho, the first major boundary of the earth's interior, separates the crust from the underlying mantle.’
    • ‘This seismic boundary is known as the Mohorovicic discontinuity.’


1930s named after Andrija Mohorovičić (1857–1936), Yugoslav seismologist.


Mohorovičić discontinuity

/ˌmōhəˈrōviˌCHiCH ˌdiskänt(ə)nˌ(y)o͞oədē/ /ˌmoʊhəˈroʊvɪˌtʃɪtʃ ˌdɪskɑnt(ə)nˌ(j)uədi/