Earthquake with magnitude of ML 3.2 on date 27-09-2020 and time 20:10:39 (Italy) in region 4 km SW Linguaglossa (CT)

A magnitude ML 3.2 earthquake occured in region: 4 km SW Linguaglossa (CT), on

  • 27-09-2020 18:10:39 (UTC)
  • 27-09-2020 20:10:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8130, 15.1150 at 2 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
Linguaglossa CT 4 5403 5403
Piedimonte Etneo CT 6 3963 9366
Castiglione di Sicilia CT 8 3215 12581
Sant'Alfio CT 8 1582 14163
Fiumefreddo di Sicilia CT 9 9623 23786
Mascali CT 9 14282 38068
Milo CT 10 1087 39155
Calatabiano CT 10 5308 44463
Francavilla di Sicilia ME 10 3945 48408
Motta Camastra ME 11 845 49253
Gaggi ME 11 3184 52437
Giarre CT 11 27659 80096
Moio Alcantara ME 11 717 80813
Riposto CT 12 14838 95651
Zafferana Etnea CT 13 9517 105168
Malvagna ME 13 733 105901
Graniti ME 13 1492 107393
Santa Venerina CT 14 8592 115985
Giardini-Naxos ME 15 9415 125400
Castelmola ME 15 1088 126488
Taormina ME 15 10960 137448
Roccella Valdemone ME 16 666 138114
Randazzo CT 17 10900 149014
Mongiuffi Melia ME 17 600 149614
Santa Domenica Vittoria ME 18 980 150594
Letojanni ME 19 2861 153455
Gallodoro ME 19 367 153822
Roccafiorita ME 19 197 154019
Limina ME 20 836 154855
Fondachelli-Fantina ME 20 1019 155874

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km N of Acireale (52622 inhabitants)
34 Km N of Catania (314555 inhabitants)
57 Km SW of Reggio di Calabria (183035 inhabitants)
58 Km SW of Messina (238439 inhabitants)
85 Km N of Siracusa (122291 inhabitants)
99 Km E of Caltanissetta (63360 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

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
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 3.2 2020-09-27
18:10:39
37.8128 15.1152 2 2021-02-26
14:56:03
Bollettino Sismico Italiano INGV 84565741
Reviewed
Rev200
ML 3.2 2020-09-27
18:10:38
37.809 15.097 1 2020-09-27
18:33:18
Sala Operativa INGV-OE (Catania) 83309081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-27 18:10:39 ± 0.08
Latitude 37.8128 ± 0.0045
Longitude 15.1152 ± 0.0068
Depth (km) 2 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84565741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 555
Semi-minor axis of confidence ellipse (meter) 238
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 124
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
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) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.03957
Epicentral distance of station farthest from the epicenter (degree) 1.73569
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:3.2

Field Value
Value 3.2
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 84565741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-28 10:10:21

ML:3.2

Field Value
Value 3.2
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 83309081
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-09-27 18:33:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SERS.HNN. 2020-09-27T18:11:12.20 1.0 undecidable manual P 45 192.6627 38 0.94 12
IV.CAR1.HHN. 2020-09-27T18:11:09.68 0.6 undecidable manual P 30 185.9694 38 -0.75 27
IV.PLAC.HHE. 2020-09-27T18:11:03.28 0.3 undecidable manual P 58 135.3645 50 0.62 52
IV.CLTA.HHN. 2020-09-27T18:11:01.23 1.0 undecidable manual P 235 124.7862 50 0.18 20
IV.SCIAR.HNE. 2020-09-27T18:11:00.81 0.3 undecidable manual P 277 120.4905 50 0.44 57
IV.JOPP.HNN. 2020-09-27T18:10:58.71 0.6 undecidable manual P 37 110.7003 50 -0.17 41
IV.HMDC.HNN. 2020-09-27T18:10:57.01 0.6 undecidable manual P 197 99.123 50 -0.08 43
IV.RAFF.HHZ. 2020-09-27T18:10:56.07 0.6 undecidable manual P 226 93.1401 50 -0.09 43
IV.HAVL.HHN. 2020-09-27T18:10:56.02 1.0 undecidable manual P 180 94.6386 50 -0.38 20
IV.CSLB.HHZ. 2020-09-27T18:10:56.87 1.0 undecidable manual P 279 93.6396 50 0.63 19
IV.HVZN.HNZ. 2020-09-27T18:10:54.11 0.6 undecidable manual P 207 78.6657 50 0.17 44
IV.SOI.EHN. 2020-09-27T18:10:54.94 1.0 undecidable manual P 70 87.0462 50 -0.29 21
MN.CEL.HHZ. 2020-09-27T18:10:53.85 0.6 undecidable manual P 54 84.249 50 -0.94 34
IV.SSY.HNN. 2020-09-27T18:10:52.62 1.0 undecidable manual P 183 72.7716 50 -0.4 21
IV.IVPL.HNE. 2020-09-27T18:10:51.66 0.6 undecidable manual P 349 63.5919 50 0.05 46
IV.IVUG.HHZ. 2020-09-27T18:10:51.84 0.3 undecidable manual P 350 65.6898 50 -0.09 68
IV.MSRU.HHE. 2020-09-27T18:10:50.52 1.0 undecidable manual P 34 60.6948 50 -0.64 20
IV.MTTG.HHE. 2020-09-27T18:10:50.47 1.0 undecidable manual P 67 55.4001 92 0.18 23
IV.CAGR.HHE. 2020-09-27T18:10:50.75 1.0 undecidable manual P 249 57.9975 50 0 24
IV.HLNI.HHE. 2020-09-27T18:10:49.99 1.0 undecidable manual P 203 55.7997 92 -0.38 22
IV.HCRL.HHN. 2020-09-27T18:10:49.94 0.3 undecidable manual P 187 59.1963 50 -0.99 52
IV.MSFR.HHZ. 2020-09-27T18:10:49.97 1.0 undecidable manual P 298 52.0035 92 0.36 22
IV.GALF.HHZ. 2020-09-27T18:10:49.71 1.0 undecidable manual P 257 49.4172 92 0.61 21
IV.EPZF.HHZ. 2020-09-27T18:10:47.50 1.0 undecidable manual S 273 22.6551 94 0.42 23
IV.MPNC.HHN. 2020-09-27T18:10:47.50 0.6 undecidable manual P 29 42.4242 92 -0.2 46
IV.AIO.HHZ. 2020-09-27T18:10:46.80 1.0 undecidable manual S 30 20.3685 95 0.52 23
IV.ESML.HHE. 2020-09-27T18:10:45.79 1.0 undecidable manual P 224 29.9478 93 0.59 21
IV.MUCR.HHZ. 2020-09-27T18:10:45.87 0.6 undecidable manual P 320 33.1446 93 0.03 49
IV.ESLN.HHZ. 2020-09-27T18:10:45.70 1.0 undecidable manual S 223 18.0708 95 0.19 24
IV.NOV.HHZ. 2020-09-27T18:10:44.21 0.3 undecidable manual P 4 23.9538 94 0.22 72
IV.EVRN.HNZ. 2020-09-27T18:10:44.60 0.3 undecidable manual S 173 13.875 97 0.57 67
IV.ECHR.HHE. 2020-09-27T18:10:44.38 0.3 undecidable manual P 232 22.6551 94 0.64 64
IV.EPZF.HHZ. 2020-09-27T18:10:44.02 0.3 undecidable manual P 273 22.6551 94 0.28 71
IV.ENIC.HHE. 2020-09-27T18:10:44.33 1.0 undecidable manual P 202 21.7671 94 0.77 20
IV.EPOZ.HHZ. 2020-09-27T18:10:43.43 0.6 undecidable manual P 158 16.872 96 0.83 40
IV.AIO.HHZ. 2020-09-27T18:10:43.32 0.1 negative manual P 30 20.3685 95 0.03 100
IV.EMSG.HHZ. 2020-09-27T18:10:42.35 0.1 negative manual P 274 14.4744 97 0.23 97
IV.EMCN.HHZ. 2020-09-27T18:10:42.00 0.6 undecidable manual S 251 7.5813 103 0.12 50
IV.ESLN.HHZ. 2020-09-27T18:10:42.66 0.3 undecidable manual P 223 18.0708 95 -0.18 73
IV.ECTS.HHZ. 2020-09-27T18:10:42.30 0.3 undecidable manual S 4 7.6812 103 0.38 71
IV.EVRN.HNZ. 2020-09-27T18:10:42.22 0.1 undecidable manual P 173 13.875 97 0.23 97
IV.ECPN.HHZ. 2020-09-27T18:10:42.49 0.6 undecidable manual P 236 13.6752 97 0.54 45
IV.ECNE.HHN. 2020-09-27T18:10:41.83 0.6 undecidable manual P 242 11.2776 99 0.36 47
IV.ECBD.HHN. 2020-09-27T18:10:40.34 0.6 undecidable manual S 215 4.3956 111 -0.49 47
IV.ECTS.HHZ. 2020-09-27T18:10:40.38 0.1 negative manual P 4 7.6812 103 -0.39 95
IV.EPIT.HHN. 2020-09-27T18:10:40.60 0.6 undecidable manual S 268 5.0949 108 -0.47 47
IV.EMCN.HHZ. 2020-09-27T18:10:40.32 0.1 undecidable manual P 251 7.5813 103 -0.42 94
IV.EFIU.HHE. 2020-09-27T18:10:40.78 0.3 undecidable manual P 107 8.6802 101 -0.19 74
IV.EPIT.HHN. 2020-09-27T18:10:39.78 0.1 undecidable manual P 268 5.0949 108 -0.49 93
IV.ECBD.HHN. 2020-09-27T18:10:39.12 0.1 undecidable manual P 215 4.3956 111 -1.02 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESLN.HHN. ML:2.9 0.008051596 0.6016 AML other m 2020-09-27T18:10:48.92
IV.EVRN.HHE. ML:3.4 0.029008095 0.6016 AML other m 2020-09-27T18:10:49.18
IV.EVRN.HNN. ML:3.3 0.028262495000000002 0.4096 AML other m 2020-09-27T18:10:49.18
IV.EMSG.HHN. ML:3.5 0.041533675 0.4608 AML other m 2020-09-27T18:10:49.91
IV.EVRN.HHN. ML:3.3 0.026909449999999998 0.6528 AML other m 2020-09-27T18:10:51.10
IV.EVRN.HNE. ML:3.4 0.029490950000000002 0.512 AML other m 2020-09-27T18:10:51.14
IV.EMSG.HHE. ML:3.3 0.026881915 0.3712 AML other m 2020-09-27T18:10:51.17
IV.AIO.HHE. ML:3.0 0.009244045 0.9728 AML other m 2020-09-27T18:10:51.06
IV.EPOZ.HHE. ML:3.3 0.022605919999999998 0.96 AML other m 2020-09-27T18:10:52.86
IV.ESLN.HHE. ML:3.2 0.015287115 0.64 AML other m 2020-09-27T18:10:52.84
IV.EPOZ.HHN. ML:3.4 0.024197295 0.576 AML other m 2020-09-27T18:10:53.59
IV.AIO.HHN. ML:3.0 0.008350726999999999 0.9344 AML other m 2020-09-27T18:10:53.96
IV.MUCR.HHN. ML:3.0 0.0048954325 0.5888 AML other m 2020-09-27T18:10:55.52
IV.MUCR.HHE. ML:3.0 0.0053181055 0.576 AML other m 2020-09-27T18:10:55.34
IV.EPZF.HHN. ML:3.3 0.01486229 0.768 AML other m 2020-09-27T18:10:55.74
IV.EPZF.HHE. ML:3.5 0.022528819999999998 0.7296 AML other m 2020-09-27T18:10:56.08
IV.GALF.HNE. ML:2.4 0.00076508365 0.6784 AML other m 2020-09-27T18:11:05.47
IV.GALF.HHE. ML:3.3 0.0061139215 0.64 AML other m 2020-09-27T18:11:05.16
IV.GALF.HNN. ML:2.5 0.00092035065 0.4864 AML other m 2020-09-27T18:11:07.80
IV.GALF.HHN. ML:3.4 0.007181672 0.6784 AML other m 2020-09-27T18:11:07.81
MN.CEL.HHE. ML:2.6 0.0005623749499999999 0.6656 AML other m 2020-09-27T18:11:13.40
MN.CEL.HNE. ML:2.6 0.0005658504500000001 0.6528 AML other m 2020-09-27T18:11:13.41
MN.CEL.HNN. ML:2.8 0.0008548508 0.7552 AML other m 2020-09-27T18:11:14.89
MN.CEL.HHN. ML:2.8 0.0008593167 0.7168 AML other m 2020-09-27T18:11:14.89
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