Prayer Book Fills Gap in Italian Earthquake History

1456 Marche earthquake MS

1 November 2023–The chance discovery of a note written in a 15th century Hebrew prayer book fills an important gap in the historical Italian earthquake record, offering a brief glimpse of a previously unknown earthquake affecting the Marche region in the central Apennines. Paolo Galli, who found the note in … Continue Reading »

SSA Journals Announce Author Name Change Policy and Procedures

journal pages

28 July 2023–SSA has developed an author name change policy and procedures for authors publishing in its three journals: the Bulletin of the Seismological Society of America (BSSA), Seismological Research Letters (SRL), and The Seismic Record (TSR). There are many reasons why journal authors may change names during their publishing … Continue Reading »

What Are the Characteristics of Foreshocks for Large Earthquakes?

map of circum-Pacific foreshocks

28 June 2023–Seismologists agree that foreshocks are the most widely identified signal of an upcoming mainshock earthquake. But do these foreshock sequences have distinctive characteristics that separate them from aftershock sequences, and could these characteristics be used to help forecast mainshocks? In a new paper in Seismological Research Letters, Nadav … Continue Reading »

Hundreds of Very Shallow Earthquakes Detected in California’s Long Beach and Seal Beach

SRL Yan 2023 Figure 2 of Long Beach research areas

5 April 2023–Seismic arrays deployed in California’s Long Beach and Seal Beach areas detected more than a thousand tiny earthquakes over eight months, many of them located at surprisingly shallow depths of less than two kilometers below the surface. The findings, reported in Seismological Research Letters, confirm that the region’s … Continue Reading »