Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.6 on date 24-09-2019 and time 00:44:25 (Italy) in region 7 km W Milo (CT)

A magnitude ML 2.6 earthquake occured in region: 7 km W Milo (CT), on

  • 23-09-2019 22:44:25 (UTC)
  • 24-09-2019 00:44:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7300, 15.0390 at 4 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
Milo CT 7 1087 1087
Zafferana Etnea CT 7 9517 10604
Sant'Alfio CT 10 1582 12186
Santa Venerina CT 10 8592 20778
Pedara CT 13 14102 34880
Nicolosi CT 13 7463 42343
Giarre CT 13 27659 70002
Trecastagni CT 13 10910 80912
Ragalna CT 14 3924 84836
Viagrande CT 14 8563 93399
Mascali CT 14 14282 107681
Riposto CT 15 14838 122519
Piedimonte Etneo CT 15 3963 126482
Linguaglossa CT 16 5403 131885
Aci Sant'Antonio CT 16 17984 149869
Aci Bonaccorsi CT 16 3524 153393
Belpasso CT 16 28108 181501
Fiumefreddo di Sicilia CT 17 9623 191124
Aci Catena CT 17 29851 220975
Acireale CT 17 52622 273597
Tremestieri Etneo CT 17 20589 294186
Mascalucia CT 17 31958 326144
San Pietro Clarenza CT 18 7743 333887
San Giovanni la Punta CT 18 23060 356947
Biancavilla CT 18 24007 380954
Camporotondo Etneo CT 18 5023 385977
Valverde CT 18 7840 393817
Santa Maria di Licodia CT 18 7641 401458
Randazzo CT 18 10900 412358
Castiglione di Sicilia CT 19 3215 415573
Maletto CT 19 3920 419493
Moio Alcantara ME 19 717 420210
Gravina di Catania CT 19 25838 446048
Bronte CT 19 19172 465220
Sant'Agata li Battiati CT 19 9479 474699
San Gregorio di Catania CT 19 11966 486665
Adrano CT 20 36122 522787
Calatabiano CT 20 5308 528095

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NW of Acireale (52622 inhabitants)
26 Km N of Catania (314555 inhabitants)
68 Km SW of Reggio di Calabria (183035 inhabitants)
69 Km SW of Messina (238439 inhabitants)
78 Km N of Siracusa (122291 inhabitants)
90 Km E of Caltanissetta (63360 inhabitants)
93 Km N of Ragusa (73313 inhabitants)
97 Km NE of Vittoria (63339 inhabitants)
100 Km N of Modica (54633 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 2.6 2019-09-23
22:44:25		 37.7302 15.039 4 2020-02-28
16:41:54		 Bollettino Sismico Italiano INGV 73014761
Reviewed
Rev200 		ML 2.8 2019-09-23
22:44:24		 37.754 15.006 1 2019-09-23
22:57:06		 Sala Operativa INGV-OE (Catania) 72704731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-23 22:44:25 ± 0.09
Latitude 37.7302 ± 0.0054
Longitude 15.0390 ± 0.0080
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73014761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 617
Semi-minor axis of confidence ellipse (meter) 465
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 303
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 51
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.06115
Epicentral distance of station farthest from the epicenter (degree) 1.31481
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 42
Magnitudes information

ML:2.8

Field Value
Value 2.8
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 72704731
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2019-09-23 22:57:06

ML:2.6

Field Value
Value 2.6
Uncertainty 0.4
Num. used stations 26
Type of magnitude ML
Reference to an origin 73014761
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-05 11:43:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLAC.HHE. 2019-09-23T22:44:51.44 0.6 undecidable manual P 56 145.9428 50 1.1 27
IV.CLTA.HHN. 2019-09-23T22:44:46.67 1.0 undecidable manual P 237 114.0969 50 1.23 14
IV.HPAC.HHE. 2019-09-23T22:44:45.01 1.0 undecidable manual P 180 113.2977 50 -0.31 20
IV.AGST.EHE. 2019-09-23T22:44:44.20 1.0 undecidable manual S 162 55.1004 50 -0.04 23
IV.CROCE.HHE. 2019-09-23T22:44:44.60 0.3 undecidable manual P 204 109.113 50 -0.06 63
IV.IACL.HHE. 2019-09-23T22:44:44.51 1.0 undecidable manual P 326 107.2149 50 0.14 21
IV.SOI.EHN. 2019-09-23T22:44:43.09 0.6 undecidable manual P 67 96.6255 50 0.35 40
IV.ISPIC.EHZ. 2019-09-23T22:44:43.65 0.6 undecidable manual P 187 106.0161 50 -0.55 38
IV.GIB.HHE. 2019-09-23T22:44:43.05 0.6 undecidable manual P 288 93.24 50 0.82 35
IV.RESU.HHZ. 2019-09-23T22:44:42.50 0.6 undecidable manual P 264 86.7465 50 1.28 28
IV.ACATE.HNE. 2019-09-23T22:44:42.83 1.0 undecidable manual P 211 91.6416 50 0.86 17
MN.CEL.HHZ. 2019-09-23T22:44:42.48 0.1 undecidable manual P 52 95.1381 50 -0.03 87
IV.CPTP.HHZ. 2019-09-23T22:44:42.97 1.0 undecidable manual P 245 84.9483 50 2.02 9
IV.CSLB.HHZ. 2019-09-23T22:44:41.45 0.6 undecidable manual P 285 88.9443 50 -0.11 43
IV.PLLN.EHN. 2019-09-23T22:44:41.04 1.0 undecidable manual P 291 83.6496 50 0.29 21
IV.SICLA.EHN. 2019-09-23T22:44:40.51 1.0 undecidable manual P 45 83.0502 50 -0.14 22
IV.RAFF.HHZ. 2019-09-23T22:44:40.23 0.3 undecidable manual P 227 81.9513 50 -0.26 64
IV.IVPL.HNE. 2019-09-23T22:44:39.36 0.3 undecidable manual P 356 71.8725 50 0.44 62
IV.MSRU.HHE. 2019-09-23T22:44:38.76 0.3 undecidable manual P 35 72.0723 50 -0.19 66
IV.MTTG.HHE. 2019-09-23T22:44:38.32 0.3 undecidable manual P 62 65.2902 50 0.4 64
IV.HVZN.HHE. 2019-09-23T22:44:38.25 0.3 undecidable manual P 205 67.4769 50 -0.01 69
IV.SSY.HHZ. 2019-09-23T22:44:37.17 0.3 undecidable manual P 177 63.5919 50 -0.48 63
IV.CAGR.HHE. 2019-09-23T22:44:36.71 0.3 undecidable manual P 256 48.8178 95 1.35 44
IV.MPNC.HHE. 2019-09-23T22:44:35.93 0.3 undecidable manual P 31 53.7018 50 -0.2 68
IV.AGST.EHE. 2019-09-23T22:44:35.59 0.1 undecidable manual P 162 55.1004 50 -0.75 77
IV.MSFR.HHZ. 2019-09-23T22:44:35.57 0.3 undecidable manual P 311 51.7038 50 -0.24 68
IV.HAGA.HHZ. 2019-09-23T22:44:34.46 0.6 undecidable manual P 168 50.4162 50 -1.16 32
IV.GALF.HHZ. 2019-09-23T22:44:34.04 0.1 undecidable manual P 267 41.5251 96 0.13 94
IV.HLNI.HHZ. 2019-09-23T22:44:33.81 0.3 undecidable manual P 199 44.8218 95 -0.75 59
IV.NOV.HHE. 2019-09-23T22:44:33.20 0.6 undecidable manual P 14 34.1436 97 0.77 39
IV.MNO.SHZ. 2019-09-23T22:44:33.05 0.3 undecidable manual P 307 37.4292 96 -0.05 72
IV.AIO.HHZ. 2019-09-23T22:44:32.16 0.1 undecidable manual P 32 31.6461 98 0.21 94
IV.ECTS.EHZ. 2019-09-23T22:44:32.60 0.3 undecidable manual S 23 18.2706 103 0.54 67
IV.MUCR.HHZ. 2019-09-23T22:44:32.58 0.1 undecidable manual P 337 37.629 96 -0.55 86
IV.EPZF.HHZ. 2019-09-23T22:44:32.80 0.6 undecidable manual S 303 19.0698 102 0.48 45
IV.ECHR.HHE. 2019-09-23T22:44:30.70 1.0 undecidable manual S 246 12.0768 109 0.72 21
IV.EMSG.HHZ. 2019-09-23T22:44:30.10 0.3 undecidable manual S 322 12.7761 108 -0.09 75
IV.ECTS.EHZ. 2019-09-23T22:44:29.28 0.1 undecidable manual P 23 18.2706 103 -0.03 100
IV.ESML.HHZ. 2019-09-23T22:44:29.90 0.3 undecidable manual P 228 18.7701 103 0.5 68
IV.EPIT.HHE. 2019-09-23T22:44:29.60 0.3 undecidable manual S 10 9.0798 115 0.57 67
IV.EVRN.HNE. 2019-09-23T22:44:28.30 0.3 undecidable manual P 118 9.5793 113 0.65 65
IV.ESLN.HHZ. 2019-09-23T22:44:28.60 0.3 undecidable manual S 234 6.993 121 0.23 73
IV.EPZF.HHZ. 2019-09-23T22:44:28.79 0.3 undecidable manual P 303 19.0698 102 -0.67 64
IV.ECHR.HHE. 2019-09-23T22:44:28.01 0.1 undecidable manual P 246 12.0768 109 -0.1 100
IV.ENIC.HHZ. 2019-09-23T22:44:28.42 0.3 undecidable manual P 188 11.0778 111 0.5 69
IV.EPIT.HHE. 2019-09-23T22:44:27.32 0.1 positive manual P 10 9.0798 115 -0.24 97
IV.ESLN.HHZ. 2019-09-23T22:44:27.04 0.1 positive manual P 234 6.993 121 -0.14 100
IV.EMSG.HHZ. 2019-09-23T22:44:27.58 0.1 negative manual P 322 12.7761 108 -0.65 86
IV.EMCN.HNZ. 2019-09-23T22:44:27.68 0.3 undecidable manual S 356 6.7932 122 -0.63 66
IV.EMCN.HNZ. 2019-09-23T22:44:26.51 0.1 positive manual P 356 6.7932 122 -0.63 88
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ENIC.HHE. ML:2.3 0.0028747215 0.1792 AML other m 2019-09-23T22:44:33.17
IV.EMSG.HHE. ML:3.4 0.038156655 0.4096 AML other m 2019-09-23T22:44:33.18
IV.EMSG.HHN. ML:3.5 0.04737363 0.32 AML other m 2019-09-23T22:44:33.70
IV.ECTS.EHN. ML:3.0 0.008620094 0.2432 AML other m 2019-09-23T22:44:33.93
IV.ENIC.HHN. ML:2.3 0.00331735 1.7568 AML other m 2019-09-23T22:44:33.11
IV.GALF.HHE. ML:3.2 0.005182831000000001 0.512 AML other m 2019-09-23T22:44:37.32
IV.ECTS.EHE. ML:2.9 0.008108582999999999 0.384 AML other m 2019-09-23T22:44:37.91
IV.AIO.HHE. ML:2.8 0.0030484239999999997 1.3088 AML other m 2019-09-23T22:44:39.29
IV.ESML.HHE. ML:3.1 0.0108668 1.2192 AML other m 2019-09-23T22:44:39.95
IV.AIO.HHN. ML:2.9 0.003858936 0.5504 AML other m 2019-09-23T22:44:39.38
IV.ESML.HHN. ML:2.8 0.005043613000000001 0.896 AML other m 2019-09-23T22:44:39.30
IV.MUCR.HHE. ML:2.6 0.001358356 0.64 AML other m 2019-09-23T22:44:41.86
IV.MUCR.HHN. ML:2.7 0.0020536975 1.5136 AML other m 2019-09-23T22:44:43.84
IV.HLNI.HHN. ML:1.7 0.00017121429999999998 0.4608 AML other m 2019-09-23T22:44:50.36
IV.MNO.SHE. ML:0.0 0.002858623 0.7552 AML other m 2019-09-23T22:44:50.52
IV.MNO.SHN. ML:0.0 0.003603766 0.6016 AML other m 2019-09-23T22:44:51.30
IV.GALF.HNE. ML:2.2 0.0005492818500000001 0.7936 AML other m 2019-09-23T22:44:51.45
IV.MSFR.HHE. ML:2.3 0.0005037661 0.8352 AML other m 2019-09-23T22:44:51.30
IV.MSFR.HHN. ML:2.2 0.00044889945 0.6944 AML other m 2019-09-23T22:44:53.24
IV.GALF.HNN. ML:2.2 0.0005975132 0.5632 AML other m 2019-09-23T22:44:53.54
IV.GALF.HHN. ML:3.1 0.004631424 0.5632 AML other m 2019-09-23T22:44:53.54
IV.HLNI.HHE. ML:1.8 0.00018279414999999998 0.3328 AML other m 2019-09-23T22:44:54.57
IV.RAFF.HHN. ML:2.4 0.0003683397 0.3456 AML other m 2019-09-23T22:44:54.48
IV.RAFF.HHE. ML:2.5 0.00042246119999999997 0.4608 AML other m 2019-09-23T22:44:57.77
MN.CEL.HNN. ML:2.7 0.0005017817 0.8352 AML other m 2019-09-23T22:44:59.93
MN.CEL.HHN. ML:2.6 0.00046847715 0.8608 AML other m 2019-09-23T22:44:59.93
MN.CEL.HNE. ML:2.5 0.00031894164999999995 0.896 AML other m 2019-09-23T22:45:00.59
MN.CEL.HHE. ML:2.5 0.00031814245 0.8576 AML other m 2019-09-23T22:45:00.57
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