Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 04-02-2023 and time 22:05:30 (UTC) in region 2 km N Montalbano Elicona (ME)

A magnitude ML 1.8 earthquake occured in region: 2 km N Montalbano Elicona (ME), on

  • 04-02-2023 22:05:30 (UTC)
  • 04-02-2023 23:05:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.0390, 15.0150 at 7 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
Montalbano Elicona ME 2 2287 2287
San Piero Patti ME 4 2915 5202
Basicò ME 5 612 5814
Tripi ME 8 873 6687
Librizzi ME 8 1660 8347
Raccuja ME 9 1041 9388
Oliveri ME 10 2181 11569
Falcone ME 11 2808 14377
Novara di Sicilia ME 11 1337 15714
Floresta ME 11 485 16199
Ucria ME 12 1058 17257
Roccella Valdemone ME 12 666 17923
Montagnareale ME 12 1615 19538
Mazzarrà Sant'Andrea ME 12 1531 21069
Patti ME 12 13431 34500
Furnari ME 12 3784 38284
Malvagna ME 14 733 39017
Sant'Angelo di Brolo ME 14 3090 42107
Santa Domenica Vittoria ME 14 980 43087
Fondachelli-Fantina ME 15 1019 44106
Sinagra ME 15 2705 46811
Moio Alcantara ME 16 717 47528
Rodì Milici ME 16 2056 49584
Tortorici ME 17 6435 56019
Terme Vigliatore ME 17 7395 63414
Ficarra ME 18 1469 64883
Gioiosa Marea ME 18 7074 71957
Castroreale ME 19 2504 74461
Francavilla di Sicilia ME 19 3945 78406
Randazzo CT 19 10900 89306
Castell'Umberto ME 19 3128 92434
Piraino ME 19 3962 96396
Castiglione di Sicilia CT 20 3215 99611

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km N of Acireale (52622 inhabitants)
50 Km W of Messina (238439 inhabitants)
56 Km W of Reggio di Calabria (183035 inhabitants)
60 Km N of Catania (314555 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.8 2023-02-04
22:05:30		 38.0392 15.015 7 2023-02-04
22:13:14		 Sala Sismica INGV-Roma 114057661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-04 22:05:30 ± 0.1
Latitude 38.0392 ± 0.0045
Longitude 15.0150 ± 0.0046
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 114057661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 404
Semi-minor axis of confidence ellipse (meter) 355
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 27
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.44786
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 29
Type of magnitude ML
Reference to an origin 114057661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-04 22:13:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MSRU.HHZ. 2023-02-04T22:05:46.88 0.6 undecidable manual S 60 0.4479 50 -0.23 45
IV.CSLB.HHZ. 2023-02-04T22:05:45.84 3.0 negative manual P -0.08 0
3D.OEM9.HHE. 2023-02-04T22:05:44.21 0.6 undecidable manual S 357 0.3489 100 0.09 48
IV.IVPL.HHE. 2023-02-04T22:05:44.33 0.6 undecidable manual S 355 0.3381 100 0.62 42
IV.MSFR.HHZ. 2023-02-04T22:05:43.65 0.6 undecidable manual S 269 0.3336 101 0.12 47
IV.MPNC.HHZ. 2023-02-04T22:05:41.87 0.6 undecidable manual S 68 0.2869 102 0.1 48
IV.MTTG.HHZ. 2023-02-04T22:05:41.18 3.0 negative manual P -0.27 0
IV.MSRU.HHZ. 2023-02-04T22:05:39.78 0.6 positive manual P 60 0.4479 50 -0.3 45
IV.EMNR.HHZ. 2023-02-04T22:05:39.70 0.6 undecidable manual S 178 0.2221 106 0.33 46
IV.IVPL.HHE. 2023-02-04T22:05:38.45 0.6 undecidable manual P 355 0.3381 100 0.34 45
IV.AIO.HHZ. 2023-02-04T22:05:38.12 0.3 undecidable manual S 112 0.1844 109 0.14 73
3D.OEM9.HHE. 2023-02-04T22:05:38.72 0.6 undecidable manual P 357 0.3489 100 0.37 45
IV.ECTS.HHZ. 2023-02-04T22:05:37.61 0.3 undecidable manual S 152 0.1781 109 -0.12 73
IV.MSFR.HHZ. 2023-02-04T22:05:37.67 0.6 negative manual P 269 0.3336 101 -0.34 45
IV.EFIU.HHZ. 2023-02-04T22:05:37.60 3.0 negative manual P 0.32 0
IV.EMNR.HHZ. 2023-02-04T22:05:36.18 0.3 undecidable manual P 178 0.2221 106 0.57 65
IV.EMSG.HHZ. 2023-02-04T22:05:36.13 3.0 negative manual P 0.13 0
IV.MPNC.HHZ. 2023-02-04T22:05:36.80 0.6 undecidable manual P 68 0.2869 102 -0.19 47
IV.EPIT.HHZ. 2023-02-04T22:05:36.30 3.0 undecidable manual P 0.24 0
IV.MUCR.HHZ. 2023-02-04T22:05:35.49 0.3 undecidable manual S 272 0.1115 119 0.11 74
IV.ECTS.HHZ. 2023-02-04T22:05:34.66 0.3 undecidable manual P 152 0.1781 109 -0.01 75
IV.LIBRI.HNZ. 2023-02-04T22:05:34.02 0.3 undecidable manual S 303 0.0809 128 -0.39 70
IV.AIO.HHZ. 2023-02-04T22:05:34.47 0.1 positive manual P 112 0.1844 109 -0.34 93
IV.MUCR.HHZ. 2023-02-04T22:05:33.13 0.1 positive manual P 272 0.1115 119 -0.17 98
IV.LIBRI.HNZ. 2023-02-04T22:05:32.68 0.1 positive manual P 303 0.0809 128 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LIBRI.HNN. ML:1.8 0.00095001145 0.2432 AML other m 2023-02-04T22:05:36.17
IV.LIBRI.HNE. ML:1.7 0.00079600925 0.4352 AML other m 2023-02-04T22:05:37.64
IV.MUCR.HHN. ML:2.2 0.0020394579999999996 0.2816 AML other m 2023-02-04T22:05:36.20
IV.MUCR.HHE. ML:2.0 0.0012130774999999999 0.2816 AML other m 2023-02-04T22:05:36.17
IV.LIBRI.HHN. ML:1.3 0.00033299999999999996 1.44 AML other m 2023-02-04T22:05:37.23
IV.LIBRI.HHE. ML:1.5 0.00047299999999999995 0.44 AML other m 2023-02-04T22:05:37.61
IV.ECTS.HHE. ML:2.1 0.001 0.32 AML other m 2023-02-04T22:05:37.99
IV.ECTS.HHN. ML:2.3 0.0014550000000000001 1.72 AML other m 2023-02-04T22:05:38.96
IV.MSFR.HHE. ML:1.4 0.0001055 1.66 AML other m 2023-02-04T22:05:39.11
IV.EPIT.HHE. ML:2.2 0.0009454243500000001 0.9728 AML other m 2023-02-04T22:05:45.79
IV.EMSG.HHN. ML:2.2 0.0009674474500000001 0.384 AML other m 2023-02-04T22:05:43.40
IV.EPIT.HHN. ML:2.3 0.0013187745 1.5616 AML other m 2023-02-04T22:05:43.44
IV.MPNC.HHN. ML:1.7 0.0002525427 0.8832 AML other m 2023-02-04T22:05:47.85
IV.EMSG.HHE. ML:2.2 0.0009450000000000001 1.3 AML other m 2023-02-04T22:05:43.88
IV.MPNC.HHE. ML:1.7 0.00025063325 0.8448 AML other m 2023-02-04T22:05:44.86
IV.MSFR.HHN. ML:1.6 0.0001589 0.64 AML other m 2023-02-04T22:05:47.17
IV.EFIU.HHE. ML:1.7 0.00023349999999999998 0.84 AML other m 2023-02-04T22:05:48.33
IV.EFIU.HHN. ML:1.9 0.00038728119999999997 1.9584 AML other m 2023-02-04T22:05:47.80
IV.EFIU.HNN. ML:2.0 0.00040739475000000004 2.2912 AML other m 2023-02-04T22:05:48.17
IV.EFIU.HNE. ML:1.7 0.000232501 0.9728 AML other m 2023-02-04T22:05:56.52
IV.AIO.HHN. ML:2.0 0.0008332777 0.2688 AML other m 2023-02-04T22:05:38.81
IV.MSRU.HHE. ML:1.9 0.00021547015 1.7408 AML other m 2023-02-04T22:05:41.14
IV.MSRU.HHN. ML:1.8 0.0001924363 1.5232 AML other m 2023-02-04T22:05:40.10
IV.MTTG.HHE. ML:1.7 0.0001099873 1.4208 AML other m 2023-02-04T22:05:59.04
IV.MTTG.HHN. ML:1.7 0.000098143545 0.8576 AML other m 2023-02-04T22:05:57.43
IV.CSLB.HHE. ML:1.4 0.00003176967 1.1904 AML other m 2023-02-04T22:06:00.02
IV.CSLB.HHN. ML:1.4 0.00003715366 1.4208 AML other m 2023-02-04T22:06:11.88
IV.CSLB.HNE. ML:1.7 0.000072383035 1.1648 AML other m 2023-02-04T22:06:00.61
IV.CSLB.HNN. ML:1.7 0.00006965154 1.6384 AML other m 2023-02-04T22:05:58.79
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download