Earthquake with magnitude of ML 3.1 on date 20-11-2018 and time 06:53:42 (Italy) in region 9 km NE Biancavilla (CT)

A magnitude ML 3.1 earthquake occured in region: 9 km NE Biancavilla (CT), on

  • 20-11-2018 05:53:42 (UTC)
  • 20-11-2018 06:53:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.71, 14.92 at 23 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
Biancavilla CT 9 24007 24007
Ragalna CT 9 3924 27931
Adrano CT 9 36122 64053
Santa Maria di Licodia CT 11 7641 71694
Bronte CT 11 19172 90866
Maletto CT 14 3920 94786
Belpasso CT 14 28108 122894
Nicolosi CT 14 7463 130357
Paternò CT 15 48228 178585
Pedara CT 16 14102 192687
Zafferana Etnea CT 16 9517 202204
Trecastagni CT 18 10910 213114
Milo CT 18 1087 214201
Camporotondo Etneo CT 18 5023 219224
San Pietro Clarenza CT 18 7743 226967
Centuripe EN 18 5470 232437
Randazzo CT 19 10900 243337
Viagrande CT 19 8563 251900
Mascalucia CT 19 31958 283858
Maniace CT 20 3765 287623
Santa Venerina CT 20 8592 296215

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km W of Acireale (52622 inhabitants)
27 Km NW of Catania (314555 inhabitants)
78 Km SW of Messina (238439 inhabitants)
78 Km SW of Reggio di Calabria (183035 inhabitants)
79 Km E of Caltanissetta (63360 inhabitants)
80 Km NW of Siracusa (122291 inhabitants)
89 Km N of Ragusa (73313 inhabitants)
91 Km NE of Vittoria (63339 inhabitants)
93 Km NE of Gela (75827 inhabitants)
96 Km N of Modica (54633 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 last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. 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 last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 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 1985

Earthquakes since 1985 *

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 2014

Earthquakes since 1000 AD until 2014 *

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

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 adjourned progressively as more data become available. See http://shakemap.rm.ingv.it/ for additional information.

The red star indicates the epicenter. The red triangles show the stations of the INGV Italian National Seismic Network and the blue triangles those of the Nationa Accelerometric Network of the Dipartimento della Protezione Civile.

Intensity Shakemap

Intensity Shakemap *

This map shows the distribution of the istrumentally derived intensities. To this purpose, it is used a conversion relation between ground acceleration and velocity, and the Mercalli Modificata (MMI - Modified Mercalli Intensity) scale. In general, the Mercalli intensity scale relies on the effects that the ground shaking produces as reported by an observer.
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap *

This map shows This map shows the distribution of peak ground acceleration expressed as per cent 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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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
Rev 1000 ML 3.1 2018-11-20
05:53:42
37.71 14.92 23 2019-06-04
09:16:17
Bollettino Sismico Italiano INGV 68535501
Rev 200 ML 3.1 2018-11-20
05:53:42
37.71 14.87 22 2019-05-14
09:04:22
Sala Operativa INGV-OE (Catania) 63224101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-11-20 05:53:42 ± 0.08
Latitude 37.71 ± 0.00
Longitude 14.92 ± 0.01
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68535501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 690
Semi-minor axis of confidence ellipse (meter) 32
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 111
Circular confidence region, given by single value of horizontal uncertainty (meter) 690
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 41
Number of associated phases, regardless of their use for origin computation 53
Number of defining phases 53
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 1.84361
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 37
Magnitudes information

ML:3.1

Field Value
Value 3.1
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 68535501
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-14 09:03:49

ML:3.1

Field Value
Value 3.1
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 63224101
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2018-11-20 06:02:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2018-11-20T05:54:12.40 0.3 undecidable manual P 33 1.8436 54 -1 31
IV.CROCE.HHZ. 2018-11-20T05:54:12.79 1.0 undecidable manual S 199 0.929 97 0.23 20
IV.CRJA.HHZ. 2018-11-20T05:54:10.49 0.6 undecidable manual P 274 1.5154 54 1.62 19
IV.MBFT.HHZ. 2018-11-20T05:54:10.45 0.6 undecidable manual P 279 1.5693 54 0.84 27
IV.PLAC.HHZ. 2018-11-20T05:54:08.22 0.3 undecidable manual P 58 1.4047 54 0.88 44
IV.HMDC.HHZ. 2018-11-20T05:54:08.10 0.6 undecidable manual S 188 0.759 99 0.53 39
IV.MSRU.HHZ. 2018-11-20T05:54:07.09 0.6 undecidable manual S 40 0.7222 100 0.6 39
IV.CORL.HHZ. 2018-11-20T05:54:06.91 0.3 undecidable manual P 279 1.2887 54 1.18 40
IV.JOPP.HHZ. 2018-11-20T05:54:03.43 0.3 undecidable manual P 40 1.1745 96 -0.54 53
IV.SSY.HHZ. 2018-11-20T05:54:02.64 0.3 undecidable manual S 167 0.5666 103 0.68 58
IV.MPNC.HHZ. 2018-11-20T05:54:01.94 0.6 undecidable manual S 38 0.554 103 0.34 43
IV.CLTA.HHZ. 2018-11-20T05:54:00.49 0.1 positive manual P 234 0.9389 97 0.52 76
IV.SOI.EHZ. 2018-11-20T05:54:00.49 0.3 undecidable manual P 68 0.9659 97 0.06 63
MN.CEL.HHZ. 2018-11-20T05:54:00.10 0.3 undecidable manual P 54 0.9443 97 0.04 64
IV.AGST.EHZ. 2018-11-20T05:54:00.80 0.6 undecidable manual S 152 0.5153 105 0.3 44
IV.HPAC.HHZ. 2018-11-20T05:54:00.71 0.3 undecidable manual P 175 1.0063 97 -0.39 58
IV.IACL.HHE. 2018-11-20T05:53:59.33 0.6 undecidable manual P 332 0.9335 97 -0.55 38
IV.CROCE.HHZ. 2018-11-20T05:53:59.10 0.1 positive manual P 199 0.929 97 -0.7 71
IV.HAGA.HHZ. 2018-11-20T05:53:59.16 0.6 undecidable manual S 156 0.4649 106 0.1 46
IV.IFIL.HHN. 2018-11-20T05:53:58.73 0.6 undecidable manual P 343 0.8948 98 -0.48 39
IV.MSRU.HHZ. 2018-11-20T05:53:56.32 0.3 undecidable manual P 40 0.7222 100 0.03 67
IV.HMDC.HHZ. 2018-11-20T05:53:56.36 0.1 undecidable manual P 188 0.759 99 -0.56 78
IV.AIO.HHZ. 2018-11-20T05:53:56.62 0.6 undecidable manual S 44 0.3597 112 0.51 43
IV.NOV.HHZ. 2018-11-20T05:53:56.75 0.6 undecidable manual S 28 0.3606 112 0.62 42
IV.HLNI.HHZ. 2018-11-20T05:53:56.44 0.6 undecidable manual S 186 0.3642 112 0.21 46
IV.RAFF.HHZ. 2018-11-20T05:53:55.06 0.1 undecidable manual P 222 0.6583 101 -0.16 88
IV.PLLN.EHZ. 2018-11-20T05:53:55.05 0.6 undecidable manual P 295 0.6736 101 -0.43 41
IV.MUCR.HHE. 2018-11-20T05:53:55.57 0.6 undecidable manual S 354 0.3336 114 0.16 47
IV.MTTG.HHZ. 2018-11-20T05:53:55.75 0.3 undecidable manual P 64 0.6817 100 0.13 66
IV.IVGP.HHN. 2018-11-20T05:53:55.59 0.3 undecidable manual P 3 0.6862 100 -0.11 66
IV.IVPL.HHZ. 2018-11-20T05:53:55.41 0.3 undecidable manual P 4 0.6673 101 0.04 67
IV.CSLB.HHZ. 2018-11-20T05:53:55.57 0.3 undecidable manual P 289 0.7168 100 -0.63 58
IV.MNO.SHZ. 2018-11-20T05:53:54.19 0.6 undecidable manual S 321 0.2824 119 0.16 47
IV.GALF.HHZ. 2018-11-20T05:53:54.93 0.6 undecidable manual S 270 0.2788 119 0.99 35
IV.MPNC.HHZ. 2018-11-20T05:53:53.30 0.1 undecidable manual P 38 0.554 103 -0.17 89
IV.SSY.HHZ. 2018-11-20T05:53:53.55 0.1 positive manual P 167 0.5666 103 -0.13 90
MN.VAE.HHZ. 2018-11-20T05:53:53.86 0.3 undecidable manual P 242 0.509 105 1.13 48
IV.AGST.EHZ. 2018-11-20T05:53:52.53 0.1 negative manual P 152 0.5153 105 -0.31 88
IV.EPZF.HHZ. 2018-11-20T05:53:51.34 0.6 undecidable manual S 337 0.1232 145 0.88 38
IV.HAGA.HHZ. 2018-11-20T05:53:51.75 0.1 negative manual P 156 0.4649 106 -0.25 90
IV.AIO.HHZ. 2018-11-20T05:53:50.29 0.1 undecidable manual P 44 0.3597 112 -0.01 96
IV.ESML.HHZ. 2018-11-20T05:53:50.38 0.6 undecidable manual S 199 0.098 151 0.33 47
IV.NOV.HHZ. 2018-11-20T05:53:50.38 0.3 undecidable manual P 28 0.3606 112 0.06 72
IV.ESLN.HHZ. 2018-11-20T05:53:49.76 0.6 undecidable manual S 111 0.0477 165 0.26 48
IV.HLNI.HHZ. 2018-11-20T05:53:49.98 0.1 positive manual P 186 0.3642 112 -0.39 89
IV.MUCR.HHE. 2018-11-20T05:53:49.36 0.1 undecidable manual P 354 0.3336 114 -0.54 86
IV.GALF.HHZ. 2018-11-20T05:53:48.75 0.1 negative manual P 270 0.2788 119 -0.3 92
IV.MNO.SHZ. 2018-11-20T05:53:48.86 0.1 negative manual P 321 0.2824 119 -0.25 93
IV.EPOZ.HHZ. 2018-11-20T05:53:48.55 0.1 negative manual P 100 0.2167 127 0.39 91
IV.ESML.HHZ. 2018-11-20T05:53:46.60 0.1 undecidable manual P 199 0.098 151 -0.21 98
IV.EMCN.HNE. 2018-11-20T05:53:46.92 0.1 undecidable manual P 48 0.1214 145 -0.1 99
IV.ESLN.HHZ. 2018-11-20T05:53:46.36 0.1 negative manual P 111 0.0477 165 -0.13 100
IV.EPZF.HHZ. 2018-11-20T05:53:46.60 0.1 positive manual P 337 0.1232 145 -0.44 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:4 0.0607 1.4 AML other m 2018-11-20T05:53:51.01
IV.EPZF.HHN. ML:3.6 0.0242 1.54 AML other m 2018-11-20T05:53:51.09
IV.ESLN.HHE. ML:3.2 0.01295 1.18 AML other m 2018-11-20T05:53:52.64
IV.ESML.HHE. ML:3.2 0.01185 0.18 AML other m 2018-11-20T05:53:52.95
IV.MNO.SHE. ML:0 0.01137 0.8 AML other m 2018-11-20T05:53:54.88
IV.ESLN.HHN. ML:3.2 0.0115 0.86 AML other m 2018-11-20T05:53:56.53
IV.ESML.HHN. ML:3.3 0.0135 0.52 AML other m 2018-11-20T05:53:56.31
IV.MNO.SHN. ML:0 0.00631 0.44 AML other m 2018-11-20T05:53:56.98
IV.HLNI.HHN. ML:3.4 0.007775 0.34 AML other m 2018-11-20T05:53:57.17
IV.HLNI.HHE. ML:3.3 0.006135 1.3 AML other m 2018-11-20T05:53:57.01
IV.HAGA.HHE. ML:3.2 0.00381 0.46 AML other m 2018-11-20T05:53:59.86
IV.AGST.EHN. ML:3.5 0.00722 0.9 AML other m 2018-11-20T05:54:01.52
IV.HAGA.HHN. ML:3.2 0.003815 0.44 AML other m 2018-11-20T05:54:02.28
IV.SSY.HHE. ML:3.8 0.01265 1.38 AML other m 2018-11-20T05:54:02.81
IV.MPNC.HHE. ML:3.2 0.00333 0.44 AML other m 2018-11-20T05:54:03.76
IV.MPNC.HHN. ML:3.3 0.00389 1.38 AML other m 2018-11-20T05:54:03.12
IV.AGST.EHE. ML:3.4 0.00509 0.42 AML other m 2018-11-20T05:54:04.36
IV.SSY.HHN. ML:4 0.0189 0.38 AML other m 2018-11-20T05:54:04.52
IV.RAFF.HHN. ML:3 0.00158 0.22 AML other m 2018-11-20T05:54:08.87
IV.HMDC.HHN. ML:3.5 0.003945 0.88 AML other m 2018-11-20T05:54:09.79
IV.HMDC.HHE. ML:3.7 0.006705 0.36 AML other m 2018-11-20T05:54:09.46
IV.MTTG.HHE. ML:2.8 0.0009275 0.58 AML other m 2018-11-20T05:54:10.62
IV.RAFF.HHE. ML:3.1 0.0017 0.48 AML other m 2018-11-20T05:54:10.41
IV.PLLN.EHN. ML:3.5 0.005335 1.4 AML other m 2018-11-20T05:54:11.04
IV.PLLN.EHE. ML:3.6 0.005505 1.36 AML other m 2018-11-20T05:54:11.76
IV.MSRU.HHE. ML:3.1 0.00152 1.04 AML other m 2018-11-20T05:54:11.64
IV.CSLB.HHN. ML:3 0.001255 1.14 AML other m 2018-11-20T05:54:11.38
MN.VAE.HHN. ML:2.9 0.001725 0.6 AML other m 2018-11-20T05:54:11.68
IV.CSLB.HHE. ML:2.8 0.0009525 0.48 AML other m 2018-11-20T05:54:11.98
MN.VAE.HHE. ML:2.9 0.001525 0.98 AML other m 2018-11-20T05:54:12.20
IV.CROCE.HHE. ML:3.4 0.002305 0.68 AML other m 2018-11-20T05:54:13.34
IV.MSRU.HHN. ML:3 0.00131 0.76 AML other m 2018-11-20T05:54:13.51
IV.CROCE.HHN. ML:3.4 0.002485 0.46 AML other m 2018-11-20T05:54:14.13
IV.MTTG.HHN. ML:2.8 0.0008905 1.48 AML other m 2018-11-20T05:54:15.12
MN.CEL.HHN. ML:2.8 0.0006345 0.56 AML other m 2018-11-20T05:54:15.53
MN.CEL.HNN. ML:2.8 0.000528 0.56 AML other m 2018-11-20T05:54:15.54
IV.SOI.EHE. ML:2.8 0.000518 0.46 AML other m 2018-11-20T05:54:18.10
MN.CEL.HNE. ML:2.6 0.000361 1.5 AML other m 2018-11-20T05:54:19.06
MN.CEL.HHE. ML:2.7 0.000451 1.5 AML other m 2018-11-20T05:54:19.06
IV.SOI.EHN. ML:2.7 0.000404 1.42 AML other m 2018-11-20T05:54:20.05
IV.CLTA.HHN. ML:2.9 0.0007225 0.36 AML other m 2018-11-20T05:54:21.26
IV.CLTA.HHE. ML:3 0.000809 0.74 AML other m 2018-11-20T05:54:21.98
IV.JOPP.HHN. ML:2.7 0.0003395 0.56 AML other m 2018-11-20T05:54:24.66
IV.JOPP.HHE. ML:2.7 0.0003165 1.1 AML other m 2018-11-20T05:54:27.67
IV.CORL.HHE. ML:3.4 0.00142 0.48 AML other m 2018-11-20T05:54:29.05
IV.CORL.HHN. ML:3.2 0.0009355 0.58 AML other m 2018-11-20T05:54:31.36
IV.PLAC.HHN. ML:3 0.0005425 0.88 AML other m 2018-11-20T05:54:34.88
IV.PLAC.HHE. ML:2.9 0.0003455 1.4 AML other m 2018-11-20T05:54:37.20
IV.CAR1.HHE. ML:3.1 0.0003665 0.6 AML other m 2018-11-20T05:54:41.68
IV.CAR1.HHN. ML:3 0.0003145 0.62 AML other m 2018-11-20T05:54:43.14
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

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 full SEED format Download