The 1991 Sierra Madre earthquake occurred on June 28 at 07:43:55 local time with a moment magnitude of 5.6 and a maximum Mercalli intensity of VII (Very strong). The thrust earthquake resulted in two deaths, around 100 injuries, and damage estimated at $33.5–40 million.

The 1994 Northridge earthquake affected the Los Angeles area of California on January 17, 1994, at 04:30:55 PST. The epicenter of the moment magnitude 6.7 (Mw) blind thrust earthquake was beneath the San Fernando Valley. [3] .

Two deaths resulted from this earthquake -- one person was killed in Arcadia, and one person in Glendale died from a heart attack. In all, at least 100 others were injured, though the injuries were mostly minor.

3 days ago · Recent Earthquakes in California and Nevada Los Angeles Special Map. Click on an earthquake on the above map for more information. Update time = Sat Mar 8 15:00:33 2025 Here are the earthquakes appearing on this map, most recent at top ...

Jun 29, 1991 · The earthquake that jolted Southern California on Friday morning boosted the San Gabriel Mountains up a couple of inches and demonstrated once again just how some areas of the Los Angeles...

Jun 29, 1991 · A strong earthquake deep under the San Gabriel Mountains jolted Southern California this morning, killing two people, causing moderate damage and leaving the region with its usual case of ...

The (ML 5.8) Sierra Madre earthquake of 28 June 1991 occurred at a depth of 12 km under the San Gabriel Mountains of the central Transverse Ranges. Since at least 1932 this region had been quiescent for M ≥ 3.

Jul 4, 1991 · Damage estimates from the 5.8 temblor hit the $30-million mark this week in the four hardest-hit foothill cities: Pasadena, Sierra Madre, Monrovia and Arcadia. A 32-year-old San Dimas woman was...

Aug 23, 2015 · Did people actually call 911 or an observatory upon seeing the Milky Way due to the power outage that followed the Northridge Earthquake? I've frequently seen a story claiming that residents in the LA area were so shocked by the Milky Way that they called either 911 or …

Strong-motion records were recovered from 94 stations of the California Strong Motion Instrumentation Program (CSMIP) after the Sierra Madre earthquake of June 28, 1991 which occurred under the San Gabriel Mountains, approximately 20 …