Electric transformer reportedly blows underground near Soquel post office, California
Nov 2018Published 1 Nov 2026Responsible editor: Chief Editor
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Companies named in the reporting of this entry (being named is not a finding of fault): Pacific Gas and Electric
What happened
On the morning of Wednesday 21 November 2018, a Pacific Gas and Electric transformer reportedly blew underground near the post office in Soquel, California, before 10 a.m. Local outlet KION reported the event, and Patch reported that the malfunctioning of a transformer reportedly caused an explosion. More than 1,700 customers in the region lost power. PG&E said power was expected to be restored at about 2:45 p.m. At the time of publication, no other information was immediately available, and the report did not describe the cause of the failure, any injuries, or any damage beyond the outage.
Contributing factors
Not reported. The source says only that the transformer reportedly malfunctioned. The cause of the malfunction was not established at the time of publication.
Lessons learned
- Underground transformers in populated areas can fail violently, so utilities should assess enclosure condition, pressure relief and proximity to public buildings.
- Clear public information during an outage, including restoration estimates and the nature of the fault, reduces confusion for customers and the media.
- Where a failure causes a large outage, operators should confirm the cause and share findings so that similar transformers can be inspected.
More lessons on emergency response and public communication, outages, backup supply and restoration, from every incident on the register.
Source
Published 2026-11-01. Written from public reporting. Descriptive, not investigative. See the data accuracy disclaimer.
