Minor earthquake, 3.5 mag was detected near Lerna in Illinois

A minor earthquake with magnitude 3.5 (ml/mb) was reported 6 kilometers (4 miles) from Lerna in Illinois on Tuesday. Exact location of earthquake, -88.3132° West, 39.3661° North, depth 2.833 km. Event ids that are associated to the earthquake: us7000pyxx. Id of event: us7000pyxx. Global date and time of event UTC/GMT: 13/05/25 / 2025-05-13 04:43:49 / May 13, 2025 @ 4:43 am. The 3.5-magnitude earthquake was detected at 04:43:49 / 4:43 am (local time epicenter). The epicenter of the earthquake was roughly 2.833 km (2 miles) below the earth’s surface.

Event epicenter was 84 km (52 miles) from Champaign (c. 81 100 pop), 76 km (47 miles) from Decatur (c. 76 100 pop), 78 km (49 miles) from Terre Haute (c. 60 800 pop), 83 km (52 miles) from Urbana (c. 41 300 pop), 19 km (12 miles) from Charleston (c. 21 800 pop), 14 km (9 miles) from Mattoon (c. 18 600 pop). Country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Champaign, Urbana, Vandalia (min 5000 pop).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days one earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 130,000 minor earthquakes in the world each year.

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Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 6 km SSW of Lerna, Illinois. This information comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	3.5 mb	The magnitude for the event.
Longitude	-88.3132° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	39.3661° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	2.833 km	Depth of the event in kilometers.
Place	6 km SSW of Lerna, Illinois	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-05-13 04:43:49	Time when the event occurred. UTC/GMT
Updated	2025-05-13 04:54:32	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	12	The total number of felt reports
CDI	3.4	The maximum reported intensity for the event.
MMI	4.249	The maximum estimated instrumental intensity for the event.
Alert Level		The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status	reviewed	Indicates whether the event has been reviewed by a human.
Tsunami	0	This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG	193	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	us	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,us,	A comma-separated list of network contributors.
Number of Stations Used	37	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.653	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.42 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	33	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	mb_lg	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us7000pyxx	Id of event.
Event Code	7000pyxx	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000pyxx,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.5 mag was detected near Lerna in Illinois

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