Earthquake with magnitude of ML 2.7 on date 27-09-2020 and time 18:22:14 (Italy) in region 4 km SW Linguaglossa (CT)

A magnitude ML 2.7 earthquake occured in region: 4 km SW Linguaglossa (CT), on

  • 27-09-2020 16:22:14 (UTC)
  • 27-09-2020 18:22:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.82, 15.11 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 10 14282 38068
Francavilla di Sicilia ME 10 3945 42013
Calatabiano CT 10 5308 47321
Milo CT 10 1087 48408
Motta Camastra ME 11 845 49253
Gaggi ME 11 3184 52437
Moio Alcantara ME 11 717 53154
Giarre CT 11 27659 80813
Riposto CT 12 14838 95651
Malvagna ME 13 733 96384
Graniti ME 13 1492 97876
Zafferana Etnea CT 13 9517 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 16 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
Fondachelli-Fantina ME 20 1019 155038
Limina ME 20 836 155874

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km N of Acireale (52622 inhabitants)
35 Km N of Catania (314555 inhabitants)
57 Km SW of Reggio di Calabria (183035 inhabitants)
57 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 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 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. 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 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, 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 from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

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 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 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
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 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
Bulletin
Rev1000
ML 2.7 2020-09-27
16:22:14
37.82 15.11 2 2021-02-26
14:56:11
Bollettino Sismico Italiano INGV 85785031
Reviewed
Rev200
ML 2.8 2020-09-27
16:22:13
37.82 15.11 0 2020-12-28
10:01:16
Sala Operativa INGV_OE (Catania) 83305681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-27 16:22:14 ± 0.12
Latitude 37.82 ± 0.01
Longitude 15.11 ± 0.01
Depth (km) 2 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85785031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 883
Semi-minor axis of confidence ellipse (meter) 422
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 147
Circular confidence region, given by single value of horizontal uncertainty (meter) 880
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.04137
Epicentral distance of station farthest from the epicenter (degree) 0.78421
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.7

Field Value
Value 2.7
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 85785031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-28 10:00:51

ML:2.8

Field Value
Value 2.8
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 83305681
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-09-27 16:33:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SOI.EHN. 2020-09-27T16:22:31.58 0.3 undecidable manual P 71 0.7842 50 1.23 43
MN.CEL.HNZ. 2020-09-27T16:22:29.71 0.6 undecidable manual P 54 0.7581 50 -0.18 43
IV.SSY.HNN. 2020-09-27T16:22:27.71 1.0 undecidable manual P 183 0.6574 50 -0.47 20
IV.HLNI.HHE. 2020-09-27T16:22:25.44 0.6 undecidable manual P 202 0.5045 50 -0.11 46
IV.GALF.HHZ. 2020-09-27T16:22:25.71 0.6 undecidable manual P 257 0.4452 93 1.42 28
IV.MSRU.HHE. 2020-09-27T16:22:25.59 0.6 undecidable manual P 35 0.545 50 -0.67 39
IV.MTTG.HHE. 2020-09-27T16:22:25.10 0.6 undecidable manual P 68 0.4982 50 -0.35 43
IV.HCRL.HHN. 2020-09-27T16:22:25.28 0.6 undecidable manual P 187 0.5351 50 -0.81 37
IV.MSFR.HHZ. 2020-09-27T16:22:24.80 0.3 undecidable manual P 298 0.4667 93 0.04 70
IV.MPNC.HHN. 2020-09-27T16:22:22.51 0.3 undecidable manual P 29 0.3804 93 -0.35 67
IV.ECHR.HHE. 2020-09-27T16:22:20.09 1.0 undecidable manual P 231 0.205 96 1.14 17
IV.NOV.HHZ. 2020-09-27T16:22:19.45 0.3 undecidable manual P 5 0.2131 95 0.3 70
IV.ENIC.HHE. 2020-09-27T16:22:19.67 0.6 undecidable manual P 202 0.1979 96 0.88 38
IV.AIO.HHZ. 2020-09-27T16:22:18.41 0.3 undecidable manual P 31 0.1817 96 -0.04 74
IV.EFIU.HHE. 2020-09-27T16:22:18.16 0.6 undecidable manual S 109 0.08 104 0.6 44
IV.EMSG.HHZ. 2020-09-27T16:22:17.76 0.3 undecidable manual P 273 0.1304 99 0.46 68
IV.ECNE.HHN. 2020-09-27T16:22:17.53 0.6 undecidable manual P 241 0.1016 101 0.84 40
IV.ECTS.HHZ. 2020-09-27T16:22:17.31 0.6 undecidable manual S 5 0.0674 107 0.23 48
IV.EMCN.HHZ. 2020-09-27T16:22:17.10 0.6 undecidable manual S 250 0.0683 107 -0.01 51
IV.EPIT.HHN. 2020-09-27T16:22:16.48 0.6 undecidable manual S 265 0.0459 114 0.18 49
IV.EFIU.HHE. 2020-09-27T16:22:16.28 0.1 undecidable manual P 109 0.08 104 0.07 100
IV.EMCN.HHZ. 2020-09-27T16:22:15.66 0.3 undecidable manual P 250 0.0683 107 -0.3 72
IV.ECBD.HHN. 2020-09-27T16:22:15.80 0.6 undecidable manual S 212 0.0414 116 -0.35 48
IV.EPIT.HHN. 2020-09-27T16:22:15.19 0.1 undecidable manual P 265 0.0459 114 -0.3 96
IV.ECTS.HHZ. 2020-09-27T16:22:15.53 0.1 undecidable manual P 5 0.0674 107 -0.41 93
IV.ECBD.HHN. 2020-09-27T16:22:14.63 0.1 undecidable manual P 212 0.0414 116 -0.77 82
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ECTS.HHN. ML:0 0.0085734575 0.512 AML other m 2020-09-27T16:22:20.95
IV.ECTS.HHE. ML:0 0.0119665 1.1392 AML other m 2020-09-27T16:22:22.02
IV.EMCN.HNE. ML:0 0.07048596 0.768 AML other m 2020-09-27T16:22:23.96
IV.EMCN.HHE. ML:0 0.070557925 0.7552 AML other m 2020-09-27T16:22:23.96
IV.EMCN.HHN. ML:0 0.03602401 0.6272 AML other m 2020-09-27T16:22:21.96
IV.EMCN.HNN. ML:0 0.03689757 0.6144 AML other m 2020-09-27T16:22:21.96
IV.EMSG.HHE. ML:3.1 0.01409156 1.3312 AML other m 2020-09-27T16:22:29.91
IV.EMSG.HHN. ML:3.1 0.01686703 0.8832 AML other m 2020-09-27T16:22:32.71
IV.AIO.HHN. ML:2.3 0.001729968 1.0624 AML other m 2020-09-27T16:22:29.45
IV.AIO.HHE. ML:2.4 0.0018515795 0.7296 AML other m 2020-09-27T16:22:26.70
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

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 miniseed + resp format Download