Table 1 kinematic typologies reported in our database, and offset criteria used for classification of surface ruptures.

From: Surface ruptures database related to the 26 December 2018, MW 4.9 Mt. Etna earthquake, southern Italy

kinematic type

opening (cm)

throw (cm)

strike-slip (cm)

hybrid

>1

>1

n.a. or <1

minor crack

≤1

≤1

n.a. or ≤1

normal

<1

>1

n.a. or <1

reverse

<1

>1

n.a. or <1

strike-slip

<1

<1

>1

tensional

>1

<1

n.a. or <1

transpressive

<1

>1

>1

transtensive

≥1

>1

>1