Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 15-12-2019 and time 01:57:58 (UTC) in region 1 km W Sant'Alfio (CT)

A magnitude ML 2.0 earthquake occured in region: 1 km W Sant'Alfio (CT), on

  • 15-12-2019 01:57:58 (UTC)
  • 15-12-2019 02:57:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7480, 15.1280 at 13 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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'Alfio CT 2 1582 1582
Milo CT 3 1087 2669
Giarre CT 5 27659 30328
Mascali CT 6 14282 44610
Zafferana Etnea CT 6 9517 54127
Santa Venerina CT 7 8592 62719
Riposto CT 7 14838 77557
Piedimonte Etneo CT 8 3963 81520
Fiumefreddo di Sicilia CT 9 9623 91143
Linguaglossa CT 11 5403 96546
Calatabiano CT 12 5308 101854
Gaggi ME 15 3184 105038
Trecastagni CT 15 10910 115948
Castiglione di Sicilia CT 15 3215 119163
Acireale CT 15 52622 171785
Viagrande CT 15 8563 180348
Pedara CT 16 14102 194450
Aci Sant'Antonio CT 16 17984 212434
Aci Catena CT 16 29851 242285
Giardini-Naxos ME 17 9415 251700
Aci Bonaccorsi CT 17 3524 255224
Motta Camastra ME 17 845 256069
Francavilla di Sicilia ME 17 3945 260014
Nicolosi CT 17 7463 267477
Taormina ME 18 10960 278437
Castelmola ME 18 1088 279525
Graniti ME 18 1492 281017
Moio Alcantara ME 18 717 281734
Valverde CT 19 7840 289574
San Giovanni la Punta CT 19 23060 312634
Tremestieri Etneo CT 20 20589 333223

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km N of Acireale (52622 inhabitants)
27 Km N of Catania (314555 inhabitants)
61 Km SW of Reggio di Calabria (183035 inhabitants)
62 Km SW of Messina (238439 inhabitants)
78 Km N of Siracusa (122291 inhabitants)
98 Km NE of Ragusa (73313 inhabitants)
98 Km E of Caltanissetta (63360 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
Bulletin
Rev1000 		ML 2.0 2019-12-15
01:57:58		 37.7483 15.1283 13 2020-02-28
16:42:14		 Bollettino Sismico Italiano INGV 74700901
Reviewed
Rev100 		ML 2.0 2019-12-15
01:57:58		 37.7438 15.1267 15 2019-12-15
02:03:45		 Sala Sismica INGV-Roma 74637211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-15 01:57:58 ± 0.15
Latitude 37.7483 ± 0.0063
Longitude 15.1283 ± 0.0102
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74700901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 900
Semi-minor axis of confidence ellipse (meter) 259
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
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 16
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 74637211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-15 02:03:45

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 74700901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-16 10:17:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HLNI.HHE. 2019-12-15T01:58:15.15 0.3 undecidable manual S 207 49.7169 93 0.53 62
IV.MILZ.HHZ. 2019-12-15T01:58:15.36 3.0 undecidable manual S -0.15 0
IV.SICLA.EHZ. 2019-12-15T01:58:09.32 3.0 undecidable manual P -0.5 0
IV.AIO.HHZ. 2019-12-15T01:58:08.80 0.3 undecidable manual S 20 26.3514 99 0.39 68
IV.MPNC.HHN. 2019-12-15T01:58:08.03 0.1 undecidable manual P 24 48.3183 93 0.28 89
IV.HLNI.HHE. 2019-12-15T01:58:07.64 0.3 undecidable manual P 207 49.7169 93 -0.33 66
IV.MUCR.HHE. 2019-12-15T01:58:06.64 0.1 undecidable manual P 326 39.5271 95 0.24 90
IV.EPOZ.HHZ. 2019-12-15T01:58:05.07 0.3 undecidable manual S 148 9.9789 132 0.68 66
IV.ECTS.EHZ. 2019-12-15T01:58:05.96 0.3 undecidable manual S 358 14.874 116 0.5 67
IV.ESLN.HHZ. 2019-12-15T01:58:05.69 0.3 undecidable manual S 246 14.7741 116 0.24 71
IV.EMCN.HNZ. 2019-12-15T01:58:04.39 0.3 undecidable manual S 300 9.5793 134 0.09 74
IV.ESML.HHE. 2019-12-15T01:58:04.22 0.3 undecidable manual P 237 26.1516 99 -0.13 72
IV.EPZF.HHZ. 2019-12-15T01:58:04.72 0.3 undecidable manual P 290 25.2525 100 0.52 65
IV.EPIT.HHN. 2019-12-15T01:58:04.22 0.1 undecidable manual S 318 9.3795 135 -0.05 100
IV.ECHR.HHE. 2019-12-15T01:58:03.46 0.3 undecidable manual P 250 20.1687 105 0.03 73
IV.EMSG.HHZ. 2019-12-15T01:58:03.05 0.3 undecidable manual P 297 17.5713 110 -0.01 74
IV.AIO.HHZ. 2019-12-15T01:58:03.90 0.3 undecidable manual P 20 26.3514 99 -0.48 66
IV.EVRN.HNE. 2019-12-15T01:58:03.93 0.3 undecidable manual S 174 6.5934 147 0.13 75
IV.ESLN.HHZ. 2019-12-15T01:58:02.23 0.1 undecidable manual P 246 14.7741 116 -0.44 92
IV.EPOZ.HHZ. 2019-12-15T01:58:02.00 0.1 positive manual P 148 9.9789 132 -0.05 99
IV.ECTS.EHZ. 2019-12-15T01:58:02.05 0.1 undecidable manual P 358 14.874 116 -0.62 86
IV.EVRN.HNE. 2019-12-15T01:58:01.11 0.1 undecidable manual P 174 6.5934 147 -0.6 86
IV.EPIT.HHN. 2019-12-15T01:58:01.71 0.1 positive manual P 318 9.3795 135 -0.28 95
IV.EMCN.HNZ. 2019-12-15T01:58:01.82 0.1 positive manual P 300 9.5793 134 -0.19 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMCN.HNN. ML:2.5 0.0034643144999999998 0.2288 AML other m 2019-12-15T01:58:04.53
IV.ESLN.HHE. ML:1.8 0.0006180086000000001 0.36 AML other m 2019-12-15T01:58:05.77
IV.EPOZ.HHE. ML:1.9 0.0009420390999999999 0.2816 AML other m 2019-12-15T01:58:06.10
IV.EMCN.HNE. ML:2.5 0.0037488615 0.2896 AML other m 2019-12-15T01:58:06.33
IV.ESLN.HHN. ML:1.7 0.00044136785 1.4 AML other m 2019-12-15T01:58:10.26
IV.EPOZ.HHN. ML:2.0 0.00110466125 0.36 AML other m 2019-12-15T01:58:10.49
IV.AIO.HHE. ML:1.6 0.00022459455 1.6192 AML other m 2019-12-15T01:58:11.95
IV.AIO.HHN. ML:1.6 0.00021444864 0.24 AML other m 2019-12-15T01:58:11.28
IV.EPZF.HHE. ML:1.9 0.00042316209999999996 0.3392 AML other m 2019-12-15T01:58:12.12
IV.EPZF.HHN. ML:1.9 0.00046329575 0.3808 AML other m 2019-12-15T01:58:16.25
IV.SICLA.EHN. ML:2.1 0.00017614856 0.2192 AML other m 2019-12-15T01:58:17.31
IV.SICLA.EHE. ML:2.5 0.0005251291 0.24 AML other m 2019-12-15T01:58:17.42
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
Waveforms Seismic signals in miniseed + resp format Download