What is the L wave?

In the field of geophysics, particularly in seismology, L waves is not a standard term. However, the term Love waves is well-established and refers to a type of seismic wave. Love waves, named after the British mathematician and physicist Augustus Edward Hough Love, are a type of surface wave that travels along the surface of the Earth. These waves are characterized by their horizontal polarization, meaning the motion they cause is parallel to the surface of the Earth's crust. They are distinct from P waves (primary waves) and S waves (secondary waves), which are body waves that travel through the Earth's interior. Love waves are generated by earthquakes and are particularly significant for their ability to cause damage at the surface. They are slower than P and S waves and are one of the reasons why the shaking during an earthquake can be so destructive, especially in areas with soft soil. Here's the translation in Chinese: 在地球物理学领域，特别是在地震学中，L波并不是一个标准术语。然而，Love波（勒夫波）是一个已经建立的术语，它指的是一种类型的地震波。Love波以英国数学家和物理学家奥古斯塔斯·爱德华·霍夫·勒夫命名，是一种沿地球表面传播的表面波。这些波的特点是它们的水平极化，意味着它们引起的运动与地球外壳表面平行。它们与P波（初波）和S波（次波）不同，P波和S波是穿过地球内部的体波。 勒夫波是由地震产生的，它们在地表造成破坏的能力特别显著。它们比P波和S波慢，是地震期间震动如此具有破坏性的一个原因，特别是在土壤松软的地区。

In elastodynamics, Love waves, named after Augustus Edward Hough Love, are horizontally polarized surface waves. ... In seismology, Love waves (also known as Q waves (Quer: German for lateral)) are surface seismic waves that cause horizontal shifting of the Earth during an earthquake.