Earthquake with magnitude of ML 2.2 on date 28-02-2019 and time 16:49:25 (Italy) in region 1 km NW Sant'Alfio (CT)

A magnitude ML 2.2 earthquake occured in region: 1 km NW Sant'Alfio (CT), on

  • 28-02-2019 15:49:25 (UTC)
  • 28-02-2019 16:49:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.75, 15.14 at 9 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.

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 1 1582 1582
Milo CT 3 1087 2669
Giarre CT 5 27659 30328
Mascali CT 5 14282 44610
Riposto CT 6 14838 59448
Zafferana Etnea CT 7 9517 68965
Santa Venerina CT 7 8592 77557
Piedimonte Etneo CT 8 3963 81520
Fiumefreddo di Sicilia CT 8 9623 91143
Linguaglossa CT 10 5403 96546
Calatabiano CT 12 5308 101854
Gaggi ME 15 3184 105038
Castiglione di Sicilia CT 15 3215 108253
Acireale CT 15 52622 160875
Trecastagni CT 15 10910 171785
Viagrande CT 16 8563 180348
Aci Sant'Antonio CT 16 17984 198332
Giardini-Naxos ME 16 9415 207747
Pedara CT 16 14102 221849
Aci Catena CT 16 29851 251700
Motta Camastra ME 17 845 252545
Aci Bonaccorsi CT 17 3524 256069
Francavilla di Sicilia ME 17 3945 260014
Taormina ME 17 10960 270974
Castelmola ME 17 1088 272062
Nicolosi CT 18 7463 279525
Graniti ME 18 1492 281017
Moio Alcantara ME 19 717 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)
28 Km N of Catania (314555 inhabitants)
60 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)
99 Km E of Caltanissetta (63360 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985 *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
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 1000 ML 2.2 2019-02-28
15:49:25
37.75 15.14 9 2019-08-22
08:24:54
Bollettino Sismico Italiano INGV 66964121
Rev 200 ML 2.5 2019-02-28
15:49:24
37.75 15.09 11 2019-02-28
16:10:48
Sala Operativa INGV-OE (Catania) 66052921
Rev 100 ML 2.2 2019-02-28
15:49:24
37.75 15.07 19 2019-02-28
15:59:49
Sala Sismica INGV-Roma 66052561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-28 15:49:25 ± 0.09
Latitude 37.75 ± 0.00
Longitude 15.14 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 66964121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 703
Semi-minor axis of confidence ellipse (meter) 388
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 288
Circular confidence region, given by single value of horizontal uncertainty (meter) 700
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 39
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) 0.05936
Epicentral distance of station farthest from the epicenter (degree) 1.7222
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 66052921
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2019-02-28 16:10:14

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 66052561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-28 15:59:49

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 66964121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-06-21 10:32:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2019-02-28T15:49:55.14 0.6 undecidable manual P 29 1.7222 38 -0.79 25
IV.MSRU.HHZ. 2019-02-28T15:49:46.08 0.6 undecidable manual S 29 0.5918 50 0.44 41
IV.IACL.HHZ. 2019-02-28T15:49:44.48 0.6 undecidable manual P 322 0.9964 50 0.56 37
IV.GALF.HHZ. 2019-02-28T15:49:42.56 0.6 undecidable manual S 265 0.4533 50 1.02 34
IV.HAGA.HHZ. 2019-02-28T15:49:42.27 0.6 undecidable manual S 178 0.4632 50 0.43 43
IV.RAFF.HHZ. 2019-02-28T15:49:40.62 0.1 undecidable manual P 230 0.8094 50 -0.1 85
MN.CEL.HHZ. 2019-02-28T15:49:40.81 0.3 undecidable manual P 49 0.7842 50 0.51 59
IV.MPNC.HHZ. 2019-02-28T15:49:40.91 0.6 undecidable manual S 23 0.4317 50 0.01 47
IV.IVPL.HHZ. 2019-02-28T15:49:38.06 0.3 undecidable manual P 349 0.6394 50 0.25 64
IV.MSRU.HHZ. 2019-02-28T15:49:37.20 0.1 undecidable manual P 29 0.5918 50 0.2 87
IV.SSY.HHZ. 2019-02-28T15:49:36.70 0.3 undecidable manual P 185 0.5927 50 -0.32 64
IV.CAGR.HHZ. 2019-02-28T15:49:36.65 0.6 undecidable manual P 256 0.5207 50 0.87 36
IV.MTTG.HHE. 2019-02-28T15:49:36.10 0.6 undecidable manual P 60 0.5108 50 0.49 42
IV.ESML.HHE. 2019-02-28T15:49:35.73 0.6 undecidable manual S 238 0.2428 109 0.67 41
IV.GALF.HHZ. 2019-02-28T15:49:35.14 0.1 undecidable manual P 265 0.4533 50 0.51 84
IV.AIO.HHZ. 2019-02-28T15:49:34.96 0.6 undecidable manual S 19 0.2347 109 0.2 47
IV.EPZF.HHZ. 2019-02-28T15:49:34.70 0.6 undecidable manual S 289 0.2347 109 -0.06 48
IV.HAGA.HHZ. 2019-02-28T15:49:34.03 0.3 undecidable manual P 178 0.4632 50 -0.77 56
IV.HLNI.HHZ. 2019-02-28T15:49:33.80 0.3 undecidable manual P 208 0.4524 50 -0.81 56
IV.MPNC.HHZ. 2019-02-28T15:49:33.93 0.3 undecidable manual P 23 0.4317 50 -0.34 66
IV.ENIC.HHZ. 2019-02-28T15:49:32.19 0.6 undecidable manual S 218 0.1493 119 0.45 45
IV.MUCR.HHZ. 2019-02-28T15:49:32.75 0.1 undecidable manual P 325 0.3606 50 -0.29 90
IV.NOV.HHZ. 2019-02-28T15:49:31.37 0.1 positive manual P 360 0.2788 50 -0.28 91
IV.ECTS.EHE. 2019-02-28T15:49:31.16 0.6 undecidable manual S 354 0.134 121 -0.07 49
IV.ESLN.HHE. 2019-02-28T15:49:31.06 0.6 undecidable manual S 247 0.1412 120 -0.4 46
IV.EPIT.HHN. 2019-02-28T15:49:30.66 0.6 undecidable manual S 314 0.0899 132 0.79 40
IV.EMCN.HNE. 2019-02-28T15:49:30.38 0.6 undecidable manual S 297 0.0926 131 0.42 46
IV.AIO.HHZ. 2019-02-28T15:49:30.52 0.1 positive manual P 19 0.2347 109 -0.2 94
IV.ESML.HHE. 2019-02-28T15:49:30.72 0.1 undecidable manual P 238 0.2428 109 -0.17 94
IV.EPZF.HHZ. 2019-02-28T15:49:30.42 0.1 undecidable manual P 289 0.2347 109 -0.29 92
IV.EMSG.HHE. 2019-02-28T15:49:29.13 0.1 undecidable manual P 296 0.1655 116 -0.17 96
IV.EVRN.HNN. 2019-02-28T15:49:29.92 0.6 undecidable manual S 182 0.0594 144 0.84 40
IV.ESLN.HHE. 2019-02-28T15:49:28.08 0.1 negative manual P 247 0.1412 120 -0.74 82
IV.ENIC.HHZ. 2019-02-28T15:49:28.90 0.3 undecidable manual P 218 0.1493 119 -0.08 73
IV.ECTS.EHE. 2019-02-28T15:49:28.39 0.1 positive manual P 354 0.134 121 -0.29 94
IV.EPOZ.HHZ. 2019-02-28T15:49:28.25 0.1 positive manual P 153 0.0863 133 0.41 92
IV.EVRN.HNN. 2019-02-28T15:49:27.30 0.1 undecidable manual P 182 0.0594 144 -0.14 98
IV.EPIT.HHN. 2019-02-28T15:49:27.91 0.1 positive manual P 314 0.0899 132 0.02 100
IV.EMCN.HNE. 2019-02-28T15:49:27.81 0.1 negative manual P 297 0.0926 131 -0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPOZ.HHE. ML:2.7 0.0072589555 0.384 AML other m 2019-02-28T15:49:34.11
IV.ENIC.HHE. ML:2.2 0.001395527 0.2048 AML other m 2019-02-28T15:49:34.78
IV.NOV.HHE. ML:2.5 0.001635313 0.704 AML other m 2019-02-28T15:49:37.52
IV.AIO.HHN. ML:2.1 0.00068000035 0.2048 AML other m 2019-02-28T15:49:37.66
IV.AIO.HHE. ML:2.1 0.00075831715 0.192 AML other m 2019-02-28T15:49:38.49
IV.NOV.HHN. ML:2.5 0.0014417635 0.7296 AML other m 2019-02-28T15:49:38.85
IV.MPNC.HHE. ML:2.4 0.00072240305 0.4224 AML other m 2019-02-28T15:49:42.60
IV.HLNI.HHN. ML:1.4 6.6535375E-5 0.1536 AML other m 2019-02-28T15:49:43.60
IV.HAGA.HHN. ML:1.8 0.00017650059 0.3072 AML other m 2019-02-28T15:49:43.91
IV.HLNI.HHE. ML:1.7 0.000120128415 0.3584 AML other m 2019-02-28T15:49:44.44
IV.SSY.HHE. ML:2.4 0.0004537296 0.2304 AML other m 2019-02-28T15:49:49.20
IV.SSY.HHN. ML:2.9 0.0013633255 0.192 AML other m 2019-02-28T15:49:50.34
IV.MSRU.HHN. ML:2.1 0.0002317251 0.3584 AML other m 2019-02-28T15:49:51.12
IV.MSRU.HHE. ML:2.1 0.0002455273 0.2304 AML other m 2019-02-28T15:49:51.43
IV.IVPL.HHN. ML:2.2 0.00027714115 0.4224 AML other m 2019-02-28T15:49:52.95
MN.CEL.HHN. ML:1.9 9.131435E-5 0.6656 AML other m 2019-02-28T15:49:56.55
IV.CAR1.HNN. ML:2.7 0.000170814845 0.6016 AML other m 2019-02-28T15:50:08.45
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol 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
Waveforms Seismic signals in full SEED format Download