Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 26-12-2023 and time 14:48:50 (Italy) in region 2 km NW Sant'Alessio Siculo (ME)

A magnitude ML 1.5 earthquake occured in region: 2 km NW Sant'Alessio Siculo (ME), on

  • 26-12-2023 13:48:50 (UTC)
  • 26-12-2023 14:48:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.9340, 15.3320 at 9 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
Sant'Alessio Siculo ME 2 1554 1554
Forza d'Agrò ME 2 911 2465
Savoca ME 3 1732 4197
Casalvecchio Siculo ME 3 842 5039
Santa Teresa di Riva ME 4 9377 14416
Gallodoro ME 5 367 14783
Limina ME 5 836 15619
Furci Siculo ME 5 3382 19001
Roccafiorita ME 6 197 19198
Mongiuffi Melia ME 6 600 19798
Letojanni ME 6 2861 22659
Pagliara ME 6 1170 23829
Roccalumera ME 7 4141 27970
Mandanici ME 8 601 28571
Antillo ME 9 919 29490
Nizza di Sicilia ME 9 3667 33157
Castelmola ME 10 1088 34245
Taormina ME 10 10960 45205
Graniti ME 10 1492 46697
Fiumedinisi ME 11 1409 48106
Alì Terme ME 11 2539 50645
Giardini-Naxos ME 11 9415 60060
Gaggi ME 13 3184 63244
Alì ME 13 768 64012
Motta Camastra ME 15 845 64857
Fondachelli-Fantina ME 15 1019 65876
Calatabiano CT 15 5308 71184
Itala ME 16 1640 72824
Scaletta Zanclea ME 17 2140 74964
Francavilla di Sicilia ME 18 3945 78909
Fiumefreddo di Sicilia CT 19 9623 88532
Castiglione di Sicilia CT 19 3215 91747
Piedimonte Etneo CT 19 3963 95710
Linguaglossa CT 19 5403 101113
Novara di Sicilia ME 20 1337 102450

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SW of Reggio di Calabria (183035 inhabitants)
35 Km SW of Messina (238439 inhabitants)
39 Km NE of Acireale (52622 inhabitants)
53 Km NE of Catania (314555 inhabitants)
97 Km N of Siracusa (122291 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 1.5 2023-12-26
13:48:50		 37.9345 15.3323 9 2023-12-26
13:58:24		 Sala Sismica INGV-Roma 124281261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-26 13:48:50 ± 0.14
Latitude 37.9345 ± 0.0063
Longitude 15.3323 ± 0.0114
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124281261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1110
Semi-minor axis of confidence ellipse (meter) 296
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 293
Circular confidence region, given by single value of horizontal uncertainty (meter) 1110.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.44966
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 124281261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-26 13:58:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HLNI.HHZ. 2023-12-26T13:49:04.15 3.0 negative manual P 0.29 0
IV.MILZ.HHZ. 2023-12-26T13:49:03.72 0.3 undecidable manual S 347 38.4282 50 0.29 66
IV.LIBRI.HHZ. 2023-12-26T13:49:03.18 0.6 undecidable manual S 295 38.9277 50 -0.4 47
IV.MUCR.HHZ. 2023-12-26T13:49:03.90 0.6 undecidable manual S 287 41.8248 50 -0.46 46
IV.ESAL.HHZ. 2023-12-26T13:49:01.18 1.0 undecidable manual S 221 26.3514 109 1.18 16
IV.GMB1.HHZ. 2023-12-26T13:48:59.46 0.1 undecidable manual P 58 49.9167 50 -0.2 95
IV.MPNC.HHZ. 2023-12-26T13:48:59.49 0.3 undecidable manual S 4 23.5542 111 0.4 72
IV.MUCR.HHZ. 2023-12-26T13:48:58.16 0.6 undecidable manual P 287 41.8248 50 -0.26 47
IV.EFIU.HHZ. 2023-12-26T13:48:57.94 0.6 undecidable manual S 214 19.2696 115 0.22 49
IV.MILZ.HHZ. 2023-12-26T13:48:57.68 0.1 undecidable manual P 347 38.4282 50 -0.2 96
IV.EMNR.HHZ. 2023-12-26T13:48:57.26 0.1 undecidable manual P 244 29.8479 107 0.7 78
IV.LIBRI.HHZ. 2023-12-26T13:48:57.85 1.0 negative manual P 295 38.9277 50 -0.12 24
IV.EPMN.HHZ. 2023-12-26T13:48:57.53 0.6 undecidable manual S 227 18.5703 116 0.04 50
IV.ESAL.HHZ. 2023-12-26T13:48:56.20 0.1 undecidable manual P 221 26.3514 109 0.3 93
IV.ECBD.HHZ. 2023-12-26T13:48:56.37 0.1 undecidable manual P 232 27.5502 108 0.26 93
IV.MPNC.HHZ. 2023-12-26T13:48:55.26 0.1 undecidable manual P 4 23.5542 111 -0.11 96
IV.AIO.HHZ. 2023-12-26T13:48:55.30 0.6 undecidable manual S 295 9.5793 134 0.39 50
IV.EFIU.HHZ. 2023-12-26T13:48:54.28 0.3 negative manual P 214 19.2696 115 -0.31 70
IV.ECTS.HHZ. 2023-12-26T13:48:54.21 0.1 undecidable manual P 253 19.3695 115 -0.39 91
IV.EPMN.HHZ. 2023-12-26T13:48:53.89 0.6 negative manual P 227 18.5703 116 -0.56 43
IV.AIO.HHZ. 2023-12-26T13:48:52.99 0.1 undecidable manual P 295 9.5793 134 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AIO.HHE. ML:1.9 0.001191 0.26 AML other m 2023-12-26T13:48:55.52
IV.AIO.HHN. ML:1.9 0.0011179999999999999 0.2 AML other m 2023-12-26T13:48:55.55
IV.EPMN.HHE. ML:1.8 0.0005315 0.42 AML other m 2023-12-26T13:48:57.68
IV.EPMN.HHN. ML:1.7 0.0003685 0.2 AML other m 2023-12-26T13:48:58.39
IV.EFIU.HHN. ML:1.5 0.000247 0.42 AML other m 2023-12-26T13:48:59.17
IV.ECTS.HHE. ML:1.4 0.0001915 0.76 AML other m 2023-12-26T13:48:59.03
IV.EFIU.HHE. ML:1.6 0.00033850000000000004 0.5 AML other m 2023-12-26T13:48:59.89
IV.ECTS.HHN. ML:1.3 0.00016999999999999999 0.94 AML other m 2023-12-26T13:49:00.83
IV.MILZ.HHE. ML:1.4 0.00009224999999999999 0.66 AML other m 2023-12-26T13:49:04.48
IV.MILZ.HHN. ML:1.5 0.0001209 1.66 AML other m 2023-12-26T13:49:04.99
IV.MUCR.HHN. ML:1.3 0.0000668 0.54 AML other m 2023-12-26T13:49:07.55
IV.GMB1.HHN. ML:1.2 0.00004679999999999999 1.08 AML other m 2023-12-26T13:49:08.62
IV.GMB1.HHE. ML:1.2 0.0000406 1.6 AML other m 2023-12-26T13:49:09.11
IV.MUCR.HHE. ML:1.2 0.000052000000000000004 0.42 AML other m 2023-12-26T13:49:09.20
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