Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 22-05-2024 and time 21:35:21 (UTC) in region 8 km SE Acri (CS)

A magnitude ML 1.2 earthquake occured in region: 8 km SE Acri (CS), on

  • 22-05-2024 21:35:21 (UTC)
  • 22-05-2024 23:35:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.4510, 16.4610 at 14 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 8 20858 20858
Longobucco CS 13 3183 24041
San Giorgio Albanese CS 15 1432 25473
Luzzi CS 15 9396 34869
Rose CS 15 4373 39242
San Cosmo Albanese CS 15 591 39833
Vaccarizzo Albanese CS 15 1125 40958
San Demetrio Corone CS 16 3559 44517
Santa Sofia d'Epiro CS 16 2628 47145
Bisignano CS 16 10203 57348
Corigliano Calabro CS 17 40427 97775
San Pietro in Guarano CS 17 3663 101438
Castiglione Cosentino CS 18 2896 104334
Celico CS 19 2802 107136
Lappano CS 19 941 108077
Rovito CS 20 3158 111235
Spezzano della Sila CS 20 4541 115776

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Cosenza (67546 inhabitants)
54 Km N of Lamezia Terme (70714 inhabitants)
62 Km N of Catanzaro (90612 inhabitants)
71 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 1.2 2024-05-22
21:35:21		 39.451 16.4608 14 2024-05-22
21:42:27		 Sala Sismica INGV-Roma 128064351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-05-22 21:35:21 ± 0.1
Latitude 39.4510 ± 0.0072
Longitude 16.4608 ± 0.0070
Depth (km) 14 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 128064351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 628
Semi-minor axis of confidence ellipse (meter) 501
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 6
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.06115
Epicentral distance of station farthest from the epicenter (degree) 0.45056
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 128064351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-05-22 21:42:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LADO.EHZ. 2024-05-22T21:35:37.98 0.6 undecidable manual S 112 48.2184 94 0.84 37
IV.CET2.HHZ. 2024-05-22T21:35:36.21 0.6 undecidable manual S 281 44.2224 95 0.13 46
IV.PIPA.HHZ. 2024-05-22T21:35:32.11 0.6 undecidable manual S 83 30.6471 98 -0.37 45
IV.CAR1.HNZ. 2024-05-22T21:35:32.49 0.3 undecidable manual S 224 30.6471 98 0.01 73
IV.CET2.HHZ. 2024-05-22T21:35:30.00 0.3 negative manual P 281 44.2224 95 -0.04 71
IV.LADO.EHZ. 2024-05-22T21:35:30.54 1.0 negative manual P 112 48.2184 94 -0.12 23
IV.SERS.HHZ. 2024-05-22T21:35:30.97 0.6 negative manual P 157 50.0166 94 0.03 47
IV.SPS2.HHZ. 2024-05-22T21:35:29.94 0.6 undecidable manual S 211 20.5683 107 0.08 49
IV.CAR1.HNZ. 2024-05-22T21:35:27.74 0.1 undecidable manual P 224 30.6471 98 -0.22 93
IV.PIPA.HHZ. 2024-05-22T21:35:27.94 0.6 positive manual P 83 30.6471 98 -0.03 48
IV.SPS2.HHZ. 2024-05-22T21:35:26.40 0.1 positive manual P 211 20.5683 107 -0.05 98
IV.CELI.HHZ. 2024-05-22T21:35:26.84 0.6 undecidable manual S 143 6.7932 147 0.01 51
IV.CELI.HHZ. 2024-05-22T21:35:24.77 0.1 undecidable manual P 143 6.7932 147 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CELI.HHE. ML:1.6 0.00045 0.16 AML other m 2024-05-22T21:35:26.91
IV.CELI.HHN. ML:1.1 0.000137 0.64 AML other m 2024-05-22T21:35:27.28
IV.SPS2.HHN. ML:0.9 0.00005225 0.56 AML other m 2024-05-22T21:35:30.30
IV.SPS2.HHE. ML:0.8 0.000047149999999999994 0.22 AML other m 2024-05-22T21:35:31.22
IV.CAR1.HHN. ML:1.1 0.0000607 1.66 AML other m 2024-05-22T21:35:33.09
IV.CAR1.HHE. ML:1.3 0.00009655 0.2 AML other m 2024-05-22T21:35:33.80
IV.PIPA.HHN. ML:1.1 0.000058750000000000005 1.04 AML other m 2024-05-22T21:35:35.35
IV.PIPA.HHE. ML:1.2 0.00007575 0.26 AML other m 2024-05-22T21:35:36.74
IV.LADO.EHE. ML:1.7 0.00013900000000000002 1.1 AML other m 2024-05-22T21:35:53.37
IV.LADO.EHN. ML:1.6 0.000117 0.42 AML other m 2024-05-22T21:35:54.38
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