Earthquakes by city United States 100 km

Seismic city profile

Earthquake in Rialto today

Rialto, United States: 248 earthquakes of magnitude 4.0+ detected within 100 km.

Population

103,132

Residents in the indexed city record.

Earthquakes

248

Earthquakes at M4.0+ nearby.

Max magnitude

6.7

Strongest recorded event in the current radius.

Timezone

America/Los_Angeles

Coordinates 34.106, -117.370

Nearby activity pulse

Last 30 days

Last 12 months

Last nearby event: 2025-07-31 16:32 UTC

Strongest nearby event

M 6.7

Menifee, United States

1918-04-21 22:32 UTC

Updated today

Earthquake in Rialto today

No earthquake of magnitude M4.0+ has been detected today within 100 km of Rialto.

No M4.0+ event has been observed in the last 30 days around Rialto.

The strongest earthquake recorded near Rialto reached magnitude 6.7 on 1918-04-21 22:32 UTC, near Menifee.

Status today

No earthquake detected today

Strongest today

Was there an earthquake in Rialto today?

No earthquake of magnitude M4.0+ has been detected today within 100 km of Rialto.

When was the last earthquake near Rialto?

The last nearby earthquake was recorded on 2025-07-31 16:32 UTC.

What is the strongest earthquake recorded near Rialto?

The strongest earthquake recorded near Rialto reached magnitude 6.7 on 1918-04-21 22:32 UTC, near Menifee.

Map

Earthquakes within 100 km of Rialto

The map centers on Rialto and highlights the most recent earthquakes detected within 100 km.

Average magnitude

4.5

Average depth

6.6 km

Timeline

Recent seismic activity

Latest 25 events shown

UTC	Magnitude	Region	Depth
2025-07-31 16:32	M 4.4	Riverside United States	5.3 km
2024-08-12 19:20	M 4.4	Los Angeles United States	11.0 km
2024-05-01 20:49	M 4.1	Santa Ana United States	4.6 km
2024-01-25 03:43	M 4.2	Riverside United States	15.8 km
2024-01-05 18:55	M 4.2	Fontana United States	9.1 km
2023-04-01 01:16	M 4.2	Oceanside United States	13.0 km
2022-01-30 17:46	M 4.0	Oceanside United States	13.3 km
2021-09-18 02:58	M 4.3	Long Beach United States	11.9 km
2021-04-05 11:44	M 4.0	Los Angeles United States	19.3 km
2020-09-19 06:38	M 4.5	Los Angeles United States	16.9 km
2018-08-29 02:33	M 4.4	Rancho Cucamonga United States	5.5 km
2018-08-15 01:24	M 4.4	Escondido United States	1.9 km
2018-05-08 11:49	M 4.5	Yucaipa United States	12.9 km
2016-02-20 06:13	M 4.3	San Bernardino United States	6.7 km
2016-01-06 14:42	M 4.4	Hemet United States	16.7 km
2015-12-30 01:48	M 4.4	San Bernardino United States	7.0 km
2015-09-16 16:10	M 4.0	Yucaipa United States	9.6 km
2014-07-05 16:59	M 4.6	Highland United States	7.3 km
2014-03-29 21:32	M 4.1	Anaheim United States	9.3 km
2014-03-29 04:09	M 5.1	Anaheim United States	5.1 km
2014-01-15 09:35	M 4.4	Riverside United States	2.9 km
2012-08-29 20:31	M 4.1	Anaheim United States	9.1 km
2012-08-08 16:33	M 4.1	Anaheim United States	10.2 km
2012-08-08 06:23	M 4.5	Anaheim United States	10.0 km
2011-09-14 14:44	M 4.1	Moreno Valley United States	16.3 km

Monthly profile

Recent monthly trend

No monthly activity to display yet.

Historic snapshot

Earthquakes history

No historic yearly data to display yet.

Year	Max magnitude	Earthquakes