Will the biggest earthquake on October 1, 2026 be under 5.3?

Analysis

A magnitude 5.3 earthquake jolted the Hindu Kush region of Afghanistan at 0129 GMT on October 1, according to one report. That figure sits exactly on the line, and the bracket in question covers only values below 5.3. The forecast leans against the biggest quake of the day falling under it. The reports on that event disagree. A third-party page listing a USGS status of reviewed by a seismologist gives 5.2, while another report gives a preliminary 5.8. Those are reported figures, not an established USGS preferred magnitude, and I can't tell from this material which one will stand. If 5.2 held, the event would fall under the line. A 5.3 or higher would not. Other USGS records for the same date are lower. One is a 4.9 on the northern Mid-Atlantic Ridge at 00:28 UTC, and another is a 3.1 near Anza, California. Neither threatens the threshold, and neither shows the day's global maximum. The forecast therefore rests mostly on the Afghanistan event. Two of the three reported magnitudes for it are at or above 5.3, and the other is just below. The rest of the UTC day is also still to be recorded as of the forecast time. The thing to watch is the USGS preferred magnitude for the Hindu Kush event, including any revision published before 2:00 PM ET on October 2.