Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.8 on date 09-02-2019 and time 07:02:20 (Italy) in region 2 km S San Gregorio di Catania (CT)

A magnitude ML 2.8 earthquake occured in region: 2 km S San Gregorio di Catania (CT), on

  • 09-02-2019 06:02:20 (UTC)
  • 09-02-2019 07:02:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.5440, 15.1130 at 1 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
San Gregorio di Catania CT 2 11966 11966
Aci Castello CT 3 18723 30689
Sant'Agata li Battiati CT 3 9479 40168
San Giovanni la Punta CT 4 23060 63228
Valverde CT 4 7840 71068
Gravina di Catania CT 5 25838 96906
Catania CT 5 314555 411461
Tremestieri Etneo CT 5 20589 432050
Aci Bonaccorsi CT 6 3524 435574
Mascalucia CT 6 31958 467532
Aci Catena CT 7 29851 497383
Aci Sant'Antonio CT 7 17984 515367
Viagrande CT 8 8563 523930
San Pietro Clarenza CT 8 7743 531673
Trecastagni CT 9 10910 542583
Acireale CT 9 52622 595205
Pedara CT 9 14102 609307
Misterbianco CT 10 49410 658717
Camporotondo Etneo CT 10 5023 663740
Nicolosi CT 11 7463 671203
Motta Sant'Anastasia CT 13 12116 683319
Belpasso CT 13 28108 711427
Santa Venerina CT 16 8592 720019
Zafferana Etnea CT 17 9517 729536
Ragalna CT 18 3924 733460
Paternò CT 19 48228 781688
Milo CT 20 1087 782775

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km NE of Catania (314555 inhabitants)
9 Km SW of Acireale (52622 inhabitants)
56 Km N of Siracusa (122291 inhabitants)
77 Km NE of Ragusa (73313 inhabitants)
78 Km SW of Reggio di Calabria (183035 inhabitants)
82 Km NE of Modica (54633 inhabitants)
82 Km SW of Messina (238439 inhabitants)
83 Km NE of Vittoria (63339 inhabitants)
93 Km E of Caltanissetta (63360 inhabitants)
93 Km NE of Gela (75827 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
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.8 2019-02-09
06:02:20		 37.5443 15.1133 1 2019-08-22
08:24:50		 Bollettino Sismico Italiano INGV 65764301
Reviewed
Rev200 		ML 2.9 2019-02-09
06:02:18		 37.561 15.09 0 2019-02-09
06:26:50		 Sala Operativa INGV-OE (Catania) 65342301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-09 06:02:20 ± 0.14
Latitude 37.5443 ± 0.0054
Longitude 15.1133 ± 0.0102
Depth (km) 1 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 65764301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 879
Semi-minor axis of confidence ellipse (meter) 344
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 100
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.11331
Epicentral distance of station farthest from the epicenter (degree) 1.38136
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 36
Magnitudes information

ML:2.8

Field Value
Value 2.8
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 65764301
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-06-12 23:29:42

ML:2.9

Field Value
Value 2.9
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 65342301
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2019-02-09 06:26:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLAC.HHE. 2019-02-09T06:02:47.21 0.6 undecidable manual P 49 153.3354 50 0.88 30
IV.MPNC.HHE. 2019-02-09T06:02:44.20 0.6 undecidable manual S 17 69.9744 50 0.85 36
IV.CMDO.HHZ. 2019-02-09T06:02:42.07 1.0 undecidable manual P 266 113.8971 50 1.81 10
IV.ALJA.HHZ. 2019-02-09T06:02:42.09 0.6 undecidable manual P 281 121.5894 50 0.65 36
IV.IACL.HHE. 2019-02-09T06:02:41.08 0.6 undecidable manual P 329 128.1717 50 -1.38 25
IV.NOV.HHE. 2019-02-09T06:02:39.80 0.6 undecidable manual S 2 53.7018 91 1.12 33
MN.CEL.HHE. 2019-02-09T06:02:39.11 0.3 undecidable manual P 40 104.8173 50 0.25 62
IV.CLTA.HHN. 2019-02-09T06:02:39.94 0.6 undecidable manual P 247 110.2119 50 0.25 41
IV.PLLN.EHZ. 2019-02-09T06:02:38.37 0.3 undecidable manual P 301 98.5236 50 0.47 60
IV.CSLB.HHZ. 2019-02-09T06:02:38.08 0.3 undecidable manual P 296 102.3198 50 -0.4 60
IV.SOI.EHE. 2019-02-09T06:02:38.44 0.3 undecidable manual P 54 101.2209 50 0.13 64
IV.RESU.HHZ. 2019-02-09T06:02:38.37 0.3 undecidable manual P 277 93.5397 50 1.24 43
IV.PETRA.HHZ. 2019-02-09T06:02:37.35 0.3 undecidable manual P 290 93.3399 50 0.25 63
IV.AIO.HHZ. 2019-02-09T06:02:37.00 0.3 undecidable manual S 12 48.5181 92 0.12 71
IV.CROCE.HHE. 2019-02-09T06:02:36.87 0.3 undecidable manual P 213 94.0392 50 -0.34 62
IV.IVPL.HHZ. 2019-02-09T06:02:36.48 0.1 undecidable manual P 353 93.0402 50 -0.56 78
IV.HPAC.HHZ. 2019-02-09T06:02:36.82 0.1 undecidable manual P 184 92.9403 50 -0.22 85
IV.MSRU.HHZ. 2019-02-09T06:02:35.75 0.1 undecidable manual P 23 86.9463 50 -0.37 83
IV.MILZ.HHE. 2019-02-09T06:02:34.60 0.3 undecidable manual P 7 81.252 50 -0.64 58
IV.MTTG.HHZ. 2019-02-09T06:02:34.41 0.1 undecidable manual P 45 72.372 50 0.55 82
IV.RAFF.HHZ. 2019-02-09T06:02:33.79 0.1 undecidable manual P 242 75.1692 50 -0.51 83
IV.MPNC.HHE. 2019-02-09T06:02:32.94 0.3 undecidable manual P 17 69.9744 50 -0.56 61
IV.MUCR.HHE. 2019-02-09T06:02:31.34 0.6 undecidable manual P 339 59.1963 50 -0.49 43
IV.CAGR.HHE. 2019-02-09T06:02:31.70 0.3 undecidable manual P 279 54.6009 91 0.71 60
IV.GALF.HHZ. 2019-02-09T06:02:30.98 0.3 undecidable manual P 291 51.5151 92 0.62 62
IV.NOV.HHE. 2019-02-09T06:02:30.23 0.3 undecidable manual P 2 53.7018 91 -0.57 63
IV.AIO.HHZ. 2019-02-09T06:02:29.34 0.3 undecidable manual P 12 48.5181 92 -0.43 66
IV.SSY.HHZ. 2019-02-09T06:02:28.53 0.3 undecidable manual P 185 43.0236 92 -0.14 71
IV.EPZF.HHE. 2019-02-09T06:02:28.21 0.1 undecidable manual P 324 38.3283 92 0.48 89
IV.EMSG.HHZ. 2019-02-09T06:02:27.82 0.1 undecidable manual P 335 33.8439 92 0.98 73
IV.HAGA.HHE. 2019-02-09T06:02:26.14 0.1 undecidable manual P 173 29.0487 93 0.28 95
IV.AGST.EHZ. 2019-02-09T06:02:26.86 0.1 undecidable manual P 163 33.4443 92 0.1 97
IV.EPOZ.HHE. 2019-02-09T06:02:26.70 1.0 undecidable manual S 25 15.5733 95 1.21 17
IV.HLNI.HHZ. 2019-02-09T06:02:25.89 0.1 undecidable manual P 224 30.3474 93 -0.25 95
IV.EMCN.HNE. 2019-02-09T06:02:25.38 0.3 undecidable manual P 346 28.2495 93 -0.34 70
IV.ESML.HHZ. 2019-02-09T06:02:24.56 0.1 undecidable manual P 292 22.1556 94 0.07 100
IV.ENIC.HHZ. 2019-02-09T06:02:24.01 0.6 undecidable manual S 320 12.5763 96 -0.43 47
IV.ESLN.HHZ. 2019-02-09T06:02:23.58 0.6 undecidable manual P 324 20.5683 94 -0.59 44
IV.EPOZ.HHE. 2019-02-09T06:02:23.43 0.3 undecidable manual P 25 15.5733 95 0.24 73
IV.EVRN.HNN. 2019-02-09T06:02:22.44 0.3 undecidable manual P 7 16.1727 95 -0.86 60
IV.ENIC.HHZ. 2019-02-09T06:02:21.71 0.1 undecidable manual P 320 12.5763 96 -0.87 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ENIC.HHN. ML:2.9 0.010730737999999998 0.2784 AML other m 2019-02-09T06:02:25.58
IV.ENIC.HHE. ML:3.0 0.01420036 0.7424 AML other m 2019-02-09T06:02:26.88
IV.ESLN.HHE. ML:3.0 0.0084052225 1.4624 AML other m 2019-02-09T06:02:31.86
IV.ESLN.HHN. ML:3.0 0.0089773185 0.5376 AML other m 2019-02-09T06:02:32.53
IV.HLNI.HHN. ML:2.3 0.00111182355 1.2608 AML other m 2019-02-09T06:02:34.75
IV.HLNI.HHE. ML:2.1 0.0006928516 1.1392 AML other m 2019-02-09T06:02:36.30
IV.ECTS.EHN. ML:2.9 0.0029931375 1.0176 AML other m 2019-02-09T06:02:36.87
IV.AGST.EHN. ML:2.5 0.0015270215 0.8192 AML other m 2019-02-09T06:02:37.14
IV.ESML.HHE. ML:3.3 0.015464775 0.6816 AML other m 2019-02-09T06:02:38.92
IV.ECTS.EHE. ML:2.7 0.0021575965 0.8 AML other m 2019-02-09T06:02:39.27
IV.ESML.HHN. ML:3.2 0.011030495 0.8992 AML other m 2019-02-09T06:02:39.21
IV.SSY.HHE. ML:3.1 0.0042616295 1.1968 AML other m 2019-02-09T06:02:40.81
IV.AIO.HHE. ML:2.5 0.00090556405 0.7808 AML other m 2019-02-09T06:02:40.82
IV.SSY.HHN. ML:3.2 0.0059789100000000005 1.6 AML other m 2019-02-09T06:02:42.88
IV.AGST.EHE. ML:2.4 0.0011365105 0.56 AML other m 2019-02-09T06:02:43.32
IV.AIO.HHN. ML:2.5 0.0008507757 0.6816 AML other m 2019-02-09T06:02:43.77
IV.GALF.HNE. ML:2.5 0.0007731779 0.72 AML other m 2019-02-09T06:02:52.45
IV.GALF.HHE. ML:3.3 0.005871409 0.72 AML other m 2019-02-09T06:02:52.11
IV.MTTG.HHN. ML:2.4 0.0004574254 0.96 AML other m 2019-02-09T06:02:52.77
IV.MSRU.HHE. ML:2.6 0.0005105573999999999 0.9792 AML other m 2019-02-09T06:02:53.57
IV.MTTG.HHE. ML:2.5 0.0004896713 1.2032 AML other m 2019-02-09T06:02:53.28
IV.GALF.HNN. ML:2.4 0.0007322368999999999 0.7488 AML other m 2019-02-09T06:02:55.22
IV.GALF.HHN. ML:3.3 0.005368544 0.72 AML other m 2019-02-09T06:02:55.23
IV.MSRU.HHN. ML:2.4 0.00034746690000000003 0.5408 AML other m 2019-02-09T06:02:58.60
IV.IVPL.HHE. ML:3.0 0.001265059 0.72 AML other m 2019-02-09T06:03:00.10
IV.HPAC.HHE. ML:2.9 0.00089742715 0.64 AML other m 2019-02-09T06:03:02.12
IV.HPAC.HHN. ML:2.9 0.0008846428500000001 0.6208 AML other m 2019-02-09T06:03:02.68
IV.IVPL.HHN. ML:3.0 0.0010309629999999998 0.6784 AML other m 2019-02-09T06:03:04.66
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
Waveforms Seismic signals in miniseed + resp format Download