Fig. 2: Array- and frequency-dependent back-projection for the 2025 Mw 7.7 Mandalay earthquake.
From: Seismic gap breached by the 2025 Mw 7.7 Mandalay (Myanmar) earthquake

a–c, Back-projection using the European Array (EU) (a), Alaskan Array (AK) (b) and Australian Array (AU) (c), respectively. Different symbols represent different frequency bands (shown bottom left, d). Symbol size corresponds to the relative peak beam power within each frequency band, and colours indicate rupture timing. d, Rupture distance as a function of time, with solid orange lines denoting the average rupture propagation. Colour-shaded regions highlight distinct clusters of high-frequency radiation inferred from the back-projection.