Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 23-02-2024 and time 03:32:38 (Italy) in region 5 km S Acri (CS)

A magnitude ML 1.4 earthquake occured in region: 5 km S Acri (CS), on

  • 23-02-2024 02:32:38 (UTC)
  • 23-02-2024 03:32:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.4430, 16.3780 at 6 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Acri CS 5 20858 20858
Luzzi CS 8 9396 30254
Rose CS 8 4373 34627
Bisignano CS 11 10203 44830
San Pietro in Guarano CS 12 3663 48493
Santa Sofia d'Epiro CS 12 2628 51121
Castiglione Cosentino CS 13 2896 54017
San Demetrio Corone CS 14 3559 57576
Lappano CS 15 941 58517
Celico CS 15 2802 61319
Rovito CS 15 3158 64477
San Cosmo Albanese CS 16 591 65068
Zumpano CS 16 2570 67638
Spezzano della Sila CS 16 4541 72179
San Giorgio Albanese CS 17 1432 73611
Vaccarizzo Albanese CS 17 1125 74736
Spezzano Piccolo CS 17 2079 76815
Casole Bruzio CS 18 2578 79393
Trenta CS 18 2633 82026
Serra Pedace CS 18 986 83012
Pedace CS 19 1907 84919
Montalto Uffugo CS 19 19669 104588
Cosenza CS 20 67546 172134

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NE of Cosenza (67546 inhabitants)
52 Km N of Lamezia Terme (70714 inhabitants)
62 Km N of Catanzaro (90612 inhabitants)
76 Km NW of Crotone (62178 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.4 2024-02-23
02:32:38		 39.4427 16.3777 6 2024-02-23
02:46:03		 Sala Sismica INGV-Roma 125463201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-23 02:32:38 ± 0.15
Latitude 39.4427 ± 0.0072
Longitude 16.3777 ± 0.0105
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 125463201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 937
Semi-minor axis of confidence ellipse (meter) 453
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 241
Circular confidence region, given by single value of horizontal uncertainty (meter) 940.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.10882
Epicentral distance of station farthest from the epicenter (degree) 0.49822
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 125463201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-23 02:46:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SERS.HHZ. 2024-02-23T02:32:56.13 0.1 undecidable manual S 149 52.4031 50 0.42 86
IV.SELL.HHZ. 2024-02-23T02:32:56.99 0.1 undecidable manual S 157 55.3002 50 0.51 84
IV.CET2.HHZ. 2024-02-23T02:32:51.56 0.1 undecidable manual S 285 37.4292 98 0.41 89
IV.SELL.HHZ. 2024-02-23T02:32:48.01 0.1 undecidable manual P 157 55.3002 50 -0.67 79
IV.SERS.HHZ. 2024-02-23T02:32:47.56 0.1 undecidable manual P 149 52.4031 50 -0.67 79
IV.TDS.HHZ. 2024-02-23T02:32:46.77 0.1 undecidable manual S 352 24.3534 103 0.09 97
IV.CET2.HHZ. 2024-02-23T02:32:45.23 0.6 undecidable manual P 285 37.4292 98 -0.37 45
IV.SPS2.HHZ. 2024-02-23T02:32:44.27 0.1 undecidable manual S 191 17.1717 108 0 100
IV.TDS.HHZ. 2024-02-23T02:32:42.79 1.0 negative manual P 352 24.3534 103 -0.23 24
IV.CELI.HHZ. 2024-02-23T02:32:42.90 0.1 undecidable manual S 111 12.0768 115 0.27 95
IV.SPS2.HHZ. 2024-02-23T02:32:41.47 0.1 negative manual P 191 17.1717 108 -0.16 97
IV.CELI.HHZ. 2024-02-23T02:32:40.61 0.1 undecidable manual P 111 12.0768 115 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CELI.HHN. ML:1.4 0.0003265 0.36 AML other m 2024-02-23T02:32:43.00
IV.CELI.HNN. ML:1.4 0.000316 0.36 AML other m 2024-02-23T02:32:43.17
IV.CELI.HHE. ML:1.6 0.0006015 1.28 AML other m 2024-02-23T02:32:43.97
IV.CELI.HNE. ML:1.6 0.000594 0.72 AML other m 2024-02-23T02:32:43.15
IV.SPS2.HHN. ML:0.9 0.00007575 0.2 AML other m 2024-02-23T02:32:44.31
IV.SPS2.HHE. ML:0.9 0.00006839999999999998 0.24 AML other m 2024-02-23T02:32:44.35
IV.CET2.HHE. ML:1.4 0.00009795000000000001 1.06 AML other m 2024-02-23T02:32:51.41
IV.CET2.HHN. ML:1.6 0.0001595 0.7 AML other m 2024-02-23T02:32:51.63
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download