Washington earthquakes

M1.5 earthquake 4 km SW of Connell, Washington

A magnitude 1.5 earthquake struck 4 km SW of Connell, Washington on Tue, May 24, 1988, 11:38 AM PDT (18:38 UTC), 2 km (2 mi) below the surface.

A larger quake followed: M3.5 18 km ESE of Royal City, Washington. This one was a foreshock.

Connell forecastMore in Washington

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.5 (md), micro
Local time
UTC
1988-05-24 18:38:21 UTC
Depth
2.4 km (1.5 mi), shallow
Epicenter
46.629° N, 118.896° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.7 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
193°, poorly surrounded by stations
Stations used
13

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 3.518 km ESE of Royal City, Washington · 13997 days ago · 0 km deep · 45 km away
  2. 2.918 km ESE of Royal City, Washington · 13993 days ago · 0 km deep · 45 km away
  3. 2.218 km SE of Royal City, Washington · 13993 days ago · 0 km deep · 45 km away
  4. 1.718 km ESE of Royal City, Washington · 13993 days ago · 0 km deep · 46 km away
  5. 2.418 km ESE of Royal City, Washington · 13993 days ago · 0 km deep · 46 km away
  6. 1.720 km WSW of Othello, Washington · 13992 days ago · 0 km deep · 41 km away
  7. 2.013 km WNW of Othello, Washington · 13989 days ago · 13 km deep · 43 km away
  8. 1.614 km WSW of Highland, Washington · 13969 days ago · 0 km deep · 70 km away
  9. 3.78 km SW of Royal City, Washington · 13955 days ago · 3 km deep · 66 km away
  10. 2.69 km SW of Royal City, Washington · 13955 days ago · 2 km deep · 67 km away
  11. 1.616 km E of Royal City, Washington · 13955 days ago · 0 km deep · 49 km away
  12. 1.98 km WNW of Touchet, Washington · 13950 days ago · -1 km deep · 62 km away
  13. 3.316 km E of Royal City, Washington · 13949 days ago · 1 km deep · 49 km away

Before

  1. 1.518 km SE of Royal City, Washington · 14001 days ago · 0 km deep · 45 km away
  2. 2.218 km SE of Royal City, Washington · 14011 days ago · 0 km deep · 45 km away
  3. 1.618 km S of Prosser, Washington · 14012 days ago · 8 km deep · 92 km away
  4. 1.916 km SSE of Royal City, Washington · 14026 days ago · 20 km deep · 51 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10231718. Read Tue, Sep 22, 2026, 9:28 PM UTC.