Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.7 on date 24-09-2020 and time 00:24:21 (Italy) in region 11 km W Milo (CT)

A magnitude ML 2.7 earthquake occured in region: 11 km W Milo (CT), on

  • 23-09-2020 22:24:21 (UTC)
  • 24-09-2020 00:24:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7550, 15.0010 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 11 1087 1087
Zafferana Etnea CT 11 9517 10604
Sant'Alfio CT 13 1582 12186
Santa Venerina CT 14 8592 20778
Maletto CT 15 3920 24698
Randazzo CT 15 10900 35598
Ragalna CT 15 3924 39522
Bronte CT 15 19172 58694
Nicolosi CT 16 7463 66157
Linguaglossa CT 16 5403 71560
Pedara CT 16 14102 85662
Giarre CT 16 27659 113321
Moio Alcantara ME 17 717 114038
Trecastagni CT 17 10910 124948
Piedimonte Etneo CT 17 3963 128911
Biancavilla CT 17 24007 152918
Mascali CT 17 14282 167200
Castiglione di Sicilia CT 18 3215 170415
Adrano CT 18 36122 206537
Viagrande CT 18 8563 215100
Riposto CT 18 14838 229938
Belpasso CT 18 28108 258046
Santa Maria di Licodia CT 18 7641 265687
Santa Domenica Vittoria ME 18 980 266667
Fiumefreddo di Sicilia CT 19 9623 276290
Malvagna ME 19 733 277023
Aci Bonaccorsi CT 20 3524 280547
Aci Sant'Antonio CT 20 17984 298531
Roccella Valdemone ME 20 666 299197

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of Acireale (52622 inhabitants)
29 Km N of Catania (314555 inhabitants)
69 Km SW of Reggio di Calabria (183035 inhabitants)
69 Km SW of Messina (238439 inhabitants)
81 Km NW of Siracusa (122291 inhabitants)
88 Km E of Caltanissetta (63360 inhabitants)
95 Km N of Ragusa (73313 inhabitants)
98 Km NE of Vittoria (63339 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.7 2020-09-23
22:24:21		 37.7548 15.0007 4 2021-02-26
14:56:17		 Bollettino Sismico Italiano INGV 86701821
Reviewed
Rev200 		ML 2.9 2020-09-23
22:24:19		 37.757 15.013 0 2021-01-30
01:37:03		 Sala Operativa INGV_OE (Catania) 83171861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-23 22:24:21 ± 0.1
Latitude 37.7548 ± 0.0054
Longitude 15.0007 ± 0.0068
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 86701821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 665
Semi-minor axis of confidence ellipse (meter) 160
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 133
Circular confidence region, given by single value of horizontal uncertainty (meter) 670.0
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 43
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.32565
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:2.7

Field Value
Value 2.7
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 86701821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-30 01:36:39

ML:2.9

Field Value
Value 2.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 83171861
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-09-23 22:32:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CMPR.HHZ. 2020-09-23T22:25:43.31 0.1 undecidable manual Sg 5.13 0
MN.CUC.HHZ. 2020-09-23T22:24:58.89 0.6 undecidable manual P 16 258.1416 38 -2.09 7
IV.CORL.HHZ. 2020-09-23T22:24:47.51 0.6 undecidable manual P 0.21 0.74
IV.PLAC.HHZ. 2020-09-23T22:24:46.98 0.6 undecidable manual P 58 147.2415 50 0.83 30
IV.SCIAR.HHZ. 2020-09-23T22:24:41.54 1.0 undecidable manual P 281 111.4995 50 0.9 16
IV.SOI.EHZ. 2020-09-23T22:24:38.53 0.6 undecidable manual P 69 98.7234 50 -0.13 41
IV.RAFF.HHZ. 2020-09-23T22:24:36.17 0.3 undecidable manual P 224 81.4518 50 0.16 64
IV.CSLB.HHZ. 2020-09-23T22:24:36.96 0.6 undecidable manual P 284 85.0482 50 0.41 40
IV.PETRA.HHZ. 2020-09-23T22:24:36.90 0.6 undecidable manual P 277 78.1662 50 1.41 26
IV.MSRU.HHZ. 2020-09-23T22:24:33.94 0.3 undecidable manual P 38 71.7726 50 -0.58 59
IV.SSY.HHZ. 2020-09-23T22:24:32.65 0.3 undecidable manual P 174 66.5778 50 -1.05 48
IV.AGST.EHZ. 2020-09-23T22:24:31.52 0.3 undecidable manual P 160 58.7967 50 -0.98 51
IV.MPNC.HHZ. 2020-09-23T22:24:30.88 0.3 undecidable manual P 35 53.3022 50 -0.77 56
IV.MSFR.HHZ. 2020-09-23T22:24:30.17 0.3 undecidable manual P 311 47.3193 95 -0.46 64
IV.HLNI.HHZ. 2020-09-23T22:24:29.40 0.3 undecidable manual P 194 46.5201 95 -1.06 50
IV.EFIU.HHE. 2020-09-23T22:24:28.56 0.6 undecidable manual S 78 18.7701 102 0.79 40
IV.EPOZ.HHZ. 2020-09-23T22:24:28.74 0.6 undecidable manual S 119 18.87 102 0.93 37
IV.EPZF.HHZ. 2020-09-23T22:24:27.39 0.6 undecidable manual S 301 14.7741 105 0.97 37
IV.AIO.HHZ. 2020-09-23T22:24:27.18 0.3 undecidable manual P 40 31.4463 97 -0.29 68
IV.NOV.HHZ. 2020-09-23T22:24:27.44 0.6 undecidable manual P 21 32.5452 97 -0.25 46
IV.MUCR.HHZ. 2020-09-23T22:24:27.67 0.3 undecidable manual P 341 33.8439 97 -0.27 68
IV.EVRN.HNZ. 2020-09-23T22:24:26.57 0.6 undecidable manual S 122 13.875 106 0.44 45
IV.EFIU.HHE. 2020-09-23T22:24:25.03 0.3 undecidable manual P 78 18.7701 102 0.07 73
IV.EPOZ.HHZ. 2020-09-23T22:24:25.52 0.1 undecidable manual P 119 18.87 102 0.54 87
IV.ESML.HHZ. 2020-09-23T22:24:25.26 0.3 undecidable manual P 215 18.5703 102 0.34 69
IV.EPIT.HHN. 2020-09-23T22:24:25.23 0.6 undecidable manual S 38 7.9809 116 1.02 36
IV.EMSG.HHZ. 2020-09-23T22:24:25.58 0.6 undecidable manual S 329 8.5803 115 1.18 33
IV.ESLN.HHZ. 2020-09-23T22:24:24.30 0.6 undecidable manual S 199 7.1928 119 0.33 47
IV.ECBD.HHN. 2020-09-23T22:24:24.64 0.6 undecidable manual S 69 7.9809 116 0.42 46
IV.EPZF.HHZ. 2020-09-23T22:24:24.40 0.3 undecidable manual P 301 14.7741 105 0.22 71
IV.ENIC.HHZ. 2020-09-23T22:24:24.53 0.3 undecidable manual P 172 13.7751 106 0.54 66
IV.EMSG.HHZ. 2020-09-23T22:24:23.09 0.1 undecidable manual P 329 8.5803 115 0.08 99
IV.ECHR.HHE. 2020-09-23T22:24:23.95 0.3 undecidable manual P 225 10.7781 110 0.53 67
IV.EVRN.HNZ. 2020-09-23T22:24:23.87 0.3 undecidable manual P 122 13.875 106 -0.14 72
IV.EMCN.HNZ. 2020-09-23T22:24:23.22 0.3 undecidable manual S 36 4.995 129 -0.1 74
IV.ECNE.HHN. 2020-09-23T22:24:22.02 0.3 undecidable manual S 5 1.1988 164 -0.53 68
IV.ESLN.HHZ. 2020-09-23T22:24:22.62 0.1 undecidable manual P 199 7.1928 119 -0.14 98
IV.ECBD.HHN. 2020-09-23T22:24:22.93 0.1 undecidable manual P 69 7.9809 116 0.02 100
IV.EMCN.HNZ. 2020-09-23T22:24:22.09 0.1 undecidable manual P 36 4.995 129 -0.29 95
IV.EPIT.HHN. 2020-09-23T22:24:22.87 0.1 undecidable manual P 38 7.9809 116 -0.03 100
IV.ECPN.HHZ. 2020-09-23T22:24:22.30 0.3 undecidable manual S 225 1.7982 156 -0.32 71
IV.ECPN.HHZ. 2020-09-23T22:24:21.60 0.1 undecidable manual P 225 1.7982 156 -0.38 94
IV.ECNE.HHN. 2020-09-23T22:24:21.40 0.1 undecidable manual P 5 1.1988 164 -0.55 90
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EVRN.HHE. ML:2.8 0.007925 0.46 AML other m 2020-09-23T22:24:27.57
IV.EMSG.HHN. ML:3.6 0.06355 1.58 AML other m 2020-09-23T22:24:28.14
IV.EVRN.HHN. ML:3.0 0.01235 0.48 AML other m 2020-09-23T22:24:28.44
IV.EVRN.HNN. ML:3.0 0.012199999999999999 0.46 AML other m 2020-09-23T22:24:28.45
IV.EMSG.HHE. ML:3.6 0.0619 0.76 AML other m 2020-09-23T22:24:28.95
IV.EVRN.HNE. ML:2.8 0.00792 0.26 AML other m 2020-09-23T22:24:29.60
IV.EPOZ.HHN. ML:2.8 0.006025 0.52 AML other m 2020-09-23T22:24:30.64
IV.EPOZ.HNN. ML:2.4 0.00235 0.56 AML other m 2020-09-23T22:24:30.66
IV.EPOZ.HHE. ML:2.7 0.004705 1.22 AML other m 2020-09-23T22:24:30.95
IV.EPOZ.HNE. ML:2.3 0.001875 1.24 AML other m 2020-09-23T22:24:30.97
IV.EPZF.HHE. ML:3.1 0.015550000000000001 1.08 AML other m 2020-09-23T22:24:31.88
IV.ESML.HHE. ML:3.0 0.008140000000000001 0.4 AML other m 2020-09-23T22:24:31.81
IV.EPZF.HHN. ML:3.4 0.0275 0.38 AML other m 2020-09-23T22:24:33.45
IV.ESML.HHN. ML:3.1 0.0115 1.3 AML other m 2020-09-23T22:24:34.04
IV.NOV.HHN. ML:3.3 0.00967 1.12 AML other m 2020-09-23T22:24:37.04
IV.AIO.HHE. ML:2.7 0.002385 0.78 AML other m 2020-09-23T22:24:37.06
IV.MUCR.HHE. ML:2.7 0.00226 0.92 AML other m 2020-09-23T22:24:37.97
IV.NOV.HHE. ML:3.2 0.00766 0.68 AML other m 2020-09-23T22:24:38.61
IV.MUCR.HHN. ML:2.8 0.00292 1.04 AML other m 2020-09-23T22:24:38.84
IV.AIO.HHN. ML:2.9 0.0040750000000000005 0.5 AML other m 2020-09-23T22:24:39.53
IV.AGST.EHE. ML:2.5 0.000708 0.36 AML other m 2020-09-23T22:24:43.14
IV.AGST.EHN. ML:2.7 0.001077 1.44 AML other m 2020-09-23T22:24:43.23
IV.MPNC.HHN. ML:3.0 0.002585 0.54 AML other m 2020-09-23T22:24:43.70
IV.SCIAR.HNE. ML:2.5 0.00028500000000000004 0.62 AML other m 2020-09-23T22:24:46.18
IV.HLNI.HHE. ML:2.2 0.00042449999999999996 0.52 AML other m 2020-09-23T22:24:46.37
IV.HLNI.HHN. ML:2.2 0.00041500000000000006 0.44 AML other m 2020-09-23T22:24:46.99
IV.MSFR.HHE. ML:2.6 0.0010550000000000002 0.42 AML other m 2020-09-23T22:24:47.05
IV.MSFR.HHN. ML:2.4 0.000755 1.1 AML other m 2020-09-23T22:24:48.03
IV.MPNC.HHE. ML:3.0 0.0025 0.74 AML other m 2020-09-23T22:24:51.03
IV.RAFF.HHE. ML:2.6 0.000508 0.4 AML other m 2020-09-23T22:24:53.00
IV.MSRU.HHN. ML:2.5 0.0005625 0.78 AML other m 2020-09-23T22:24:54.82
IV.RAFF.HHN. ML:2.5 0.0004525 0.52 AML other m 2020-09-23T22:24:54.73
IV.MSRU.HHE. ML:2.7 0.0007769999999999999 1.1 AML other m 2020-09-23T22:24:55.67
IV.CSLB.HHN. ML:2.3 0.000261 0.88 AML other m 2020-09-23T22:25:01.87
IV.SOI.EHN. ML:2.4 0.00027449999999999995 0.56 AML other m 2020-09-23T22:25:04.60
IV.SOI.EHE. ML:2.3 0.00020600000000000002 0.98 AML other m 2020-09-23T22:25:04.93
IV.CSLB.HHE. ML:2.2 0.0001995 0.66 AML other m 2020-09-23T22:25:06.80
IV.SCIAR.HHE. ML:2.5 0.0002455 0.94 AML other m 2020-09-23T22:25:07.53
IV.PETRA.HHE. ML:2.7 0.0007115 1.16 AML other m 2020-09-23T22:25:08.94
IV.PETRA.HHN. ML:2.7 0.0007059999999999999 0.94 AML other m 2020-09-23T22:25:09.07
IV.SCIAR.HHN. ML:2.8 0.00047099999999999996 0.66 AML other m 2020-09-23T22:25:10.84
IV.SCIAR.HNN. ML:2.8 0.00047299999999999995 0.66 AML other m 2020-09-23T22:25:10.86
IV.PLAC.HHE. ML:2.6 0.00021100000000000003 0.78 AML other m 2020-09-23T22:25:21.01
IV.PLAC.HHN. ML:2.8 0.00032 0.82 AML other m 2020-09-23T22:25:21.90
IV.CORL.HHE. ML:2.8 0.00034750000000000004 0.86 AML other m 2020-09-23T22:25:23.57
IV.CORL.HHN. ML:2.9 0.00040950000000000003 1.3 AML other m 2020-09-23T22:25:30.25
MN.CUC.HNN. ML:2.9 0.00012864999999999998 1.2 AML other m 2020-09-23T22:25:45.36
MN.CUC.HNE. ML:3.0 0.00018415 0.82 AML other m 2020-09-23T22:25:52.65
MN.CUC.HHE. ML:2.5 0.00006045 0.7 AML other m 2020-09-23T22:25:54.37
MN.CUC.HHN. ML:2.5 0.00004845 1.58 AML other m 2020-09-23T22:26:04.04
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