INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.6 on date 23-01-2019 and time 21:10:01 (Italy) in region 3 km S Zafferana Etnea (CT)

A magnitude ML 1.6 earthquake occured in region: 3 km S Zafferana Etnea (CT), on

  • 23-01-2019 20:10:01 (UTC)
  • 23-01-2019 21:10:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.67, 15.11 at 8 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Zafferana Etnea CT 3 9517 9517
Santa Venerina CT 3 8592 18109
Milo CT 6 1087 19196
Trecastagni CT 6 10910 30106
Viagrande CT 7 8563 38669
Aci Sant'Antonio CT 7 17984 56653
Pedara CT 7 14102 70755
Aci Catena CT 8 29851 100606
Aci Bonaccorsi CT 8 3524 104130
Acireale CT 8 52622 156752
Sant'Alfio CT 9 1582 158334
Giarre CT 9 27659 185993
Nicolosi CT 10 7463 193456
Valverde CT 10 7840 201296
San Giovanni la Punta CT 10 23060 224356
Riposto CT 11 14838 239194
Tremestieri Etneo CT 11 20589 259783
San Gregorio di Catania CT 12 11966 271749
Mascalucia CT 12 31958 303707
Mascali CT 12 14282 317989
Sant'Agata li Battiati CT 13 9479 327468
Gravina di Catania CT 13 25838 353306
Aci Castello CT 13 18723 372029
San Pietro Clarenza CT 13 7743 379772
Camporotondo Etneo CT 15 5023 384795
Belpasso CT 15 28108 412903
Ragalna CT 16 3924 416827
Fiumefreddo di Sicilia CT 16 9623 426450
Piedimonte Etneo CT 17 3963 430413
Catania CT 19 314555 744968
Misterbianco CT 19 49410 794378
Linguaglossa CT 19 5403 799781

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km NW of Acireale (52622 inhabitants)
19 Km N of Catania (314555 inhabitants)
68 Km SW of Reggio di Calabria (183035 inhabitants)
70 Km N of Siracusa (122291 inhabitants)
70 Km SW of Messina (238439 inhabitants)
89 Km NE of Ragusa (73313 inhabitants)
94 Km E of Caltanissetta (63360 inhabitants)
95 Km NE of Vittoria (63339 inhabitants)
95 Km NE of Modica (54633 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.6 2019-01-23
20:10:01
37.67 15.11 8 2019-01-23
20:24:41
Sala Sismica INGV-Roma 64880641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-23 20:10:01 ± 0.13
Latitude 37.67 ± 0.01
Longitude 15.11 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 64880641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 836
Semi-minor axis of confidence ellipse (meter) 794
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 314
Circular confidence region, given by single value of horizontal uncertainty (meter) 840
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.67089
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 64880641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-23 20:24:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SICLA.EHZ. 2019-01-23T20:10:21.35 3.0 undecidable manual P 0
IV.HAGA.HHZ. 2019-01-23T20:10:16.94 0.3 undecidable manual S 175 0.3858 50 0.54 66
IV.HLNI.HHZ. 2019-01-23T20:10:15.66 0.6 undecidable manual S 211 0.3732 50 -0.35 46
IV.MSRU.HHE. 2019-01-23T20:10:15.11 0.6 undecidable manual P 28 0.6709 50 -0.01 47
IV.MTTG.HHE. 2019-01-23T20:10:13.43 0.6 undecidable manual P 54 0.572 50 0.01 48
IV.MUCR.HHE. 2019-01-23T20:10:11.31 0.6 undecidable manual P 333 0.4173 50 0.53 44
IV.HLNI.HHZ. 2019-01-23T20:10:09.54 0.3 undecidable manual P 211 0.3732 50 -0.48 68
IV.HAGA.HHZ. 2019-01-23T20:10:09.67 0.6 positive manual P 175 0.3858 50 -0.57 44
IV.AIO.HHE. 2019-01-23T20:10:09.58 0.6 undecidable manual P 18 0.3166 50 0.53 45
IV.EPZF.HHE. 2019-01-23T20:10:08.22 0.6 undecidable manual P 308 0.2527 106 0.53 46
IV.EMCN.HNE. 2019-01-23T20:10:07.74 0.3 undecidable manual S 333 0.1358 118 -0.03 78
IV.ENIC.HHZ. 2019-01-23T20:10:06.50 0.3 undecidable manual S 242 0.08 132 0.49 72
IV.ECTS.EHE. 2019-01-23T20:10:06.98 0.1 undecidable manual P 2 0.2122 109 0.15 100
IV.EPOZ.HHZ. 2019-01-23T20:10:06.04 0.3 undecidable manual S 88 0.0612 140 0.54 70
IV.ESML.HHZ. 2019-01-23T20:10:06.72 0.3 undecidable manual P 254 0.1907 111 0.35 72
IV.ESLN.HHZ. 2019-01-23T20:10:06.70 0.6 undecidable manual S 282 0.1106 123 -0.23 50
IV.EMCN.HNE. 2019-01-23T20:10:04.62 0.3 undecidable manual P 333 0.1358 118 -0.65 67
IV.ESLN.HHZ. 2019-01-23T20:10:04.19 0.6 positive manual P 282 0.1106 123 -0.59 46
IV.ENIC.HHZ. 2019-01-23T20:10:04.26 0.3 positive manual P 242 0.08 132 0.01 79
IV.EPOZ.HHZ. 2019-01-23T20:10:03.19 0.1 undecidable manual P 88 0.0612 140 -0.76 86
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPOZ.HHE. ML:2.4 0.0046451915 0.2432 AML other m 2019-01-23T20:10:06.61
IV.EPOZ.HHN. ML:2.8 0.0101628675 0.2048 AML other m 2019-01-23T20:10:06.24
IV.ESLN.HHE. ML:1.7 0.00060116875 0.384 AML other m 2019-01-23T20:10:12.51
IV.ESLN.HHN. ML:1.7 0.00058400695 0.4736 AML other m 2019-01-23T20:10:10.43
IV.ENIC.HHE. ML:1.9 0.00112334765 0.1792 AML other m 2019-01-23T20:10:09.56
IV.ENIC.HHN. ML:1.8 0.0009174236 0.2048 AML other m 2019-01-23T20:10:10.48
IV.ESML.HHE. ML:1.6 0.000317629 0.384 AML other m 2019-01-23T20:10:17.49
IV.ESML.HHN. ML:1.6 0.00026524765 0.9216 AML other m 2019-01-23T20:10:16.97
IV.HLNI.HHE. ML:0.8 2.050881E-5 0.2816 AML other m 2019-01-23T20:10:17.03
IV.HLNI.HHN. ML:0.8 2.1285797E-5 0.256 AML other m 2019-01-23T20:10:17.75
IV.HAGA.HHE. ML:1.3 6.969388E-5 0.4992 AML other m 2019-01-23T20:10:21.77
IV.HAGA.HHN. ML:1.3 6.32138445E-5 0.4864 AML other m 2019-01-23T20:10:19.41
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download