Earthquake with magnitude of ML 1.6 on date 27-11-2020 and time 20:40:32 (Italy) in region Costa Catanese (Catania)

A magnitude ML 1.6 earthquake occured in region: Costa Catanese (Catania), on

  • 27-11-2020 19:40:32 (UTC)
  • 27-11-2020 20:40:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.49, 15.2 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Aci Castello CT 9 18723 18723
Catania CT 11 314555 333278
San Gregorio di Catania CT 12 11966 345244
Valverde CT 12 7840 353084
Sant'Agata li Battiati CT 14 9479 362563
Aci Catena CT 14 29851 392414
San Giovanni la Punta CT 14 23060 415474
Acireale CT 14 52622 468096
Aci Sant'Antonio CT 15 17984 486080
Gravina di Catania CT 15 25838 511918
Aci Bonaccorsi CT 15 3524 515442
Tremestieri Etneo CT 15 20589 536031
Mascalucia CT 17 31958 567989
Viagrande CT 17 8563 576552
Misterbianco CT 18 49410 625962
Trecastagni CT 18 10910 636872
San Pietro Clarenza CT 19 7743 644615
Pedara CT 19 14102 658717
Camporotondo Etneo CT 20 5023 663740

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km E of Catania (314555 inhabitants)
14 Km S of Acireale (52622 inhabitants)
48 Km N of Siracusa (122291 inhabitants)
75 Km NE of Ragusa (73313 inhabitants)
79 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km NE of Modica (54633 inhabitants)
84 Km NE of Vittoria (63339 inhabitants)
85 Km SW of Messina (238439 inhabitants)
97 Km NE of Gela (75827 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
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
Reviewed
Rev100
ML 1.6 2020-11-27
19:40:32
37.49 15.21 10 2020-11-27
19:55:52
Sala Sismica INGV-Roma 85055541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-27 19:40:32 ± 0.12
Latitude 37.49 ± 0.01
Longitude 15.21 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85055541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1229
Semi-minor axis of confidence ellipse (meter) 479
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 84
Circular confidence region, given by single value of horizontal uncertainty (meter) 1230
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 180
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.7905
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 85055541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-27 19:55:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HPAC.HHE. 2020-11-27T19:40:47.35 0.3 undecidable manual P 190 0.7905 50 -0.3 63
IV.RAFF.HHE. 2020-11-27T19:40:46.60 0.3 undecidable manual P 249 0.7204 50 0.15 66
IV.MSRU.HHZ. 2020-11-27T19:40:45.42 3.0 undecidable manual P 0.05 0
IV.HLNI.HHZ. 2020-11-27T19:40:44.00 0.3 undecidable manual S 242 0.2986 50 -0.1 72
IV.HCRL.HHZ. 2020-11-27T19:40:43.08 0.3 undecidable manual S 214 0.2464 50 0.53 66
IV.AGST.EHZ. 2020-11-27T19:40:42.32 0.3 undecidable manual S 176 0.232 50 0.2 72
IV.HVZN.HHE. 2020-11-27T19:40:42.48 0.3 undecidable manual P 232 0.4973 50 -0.16 69
IV.HAGA.HHZ. 2020-11-27T19:40:41.32 0.3 undecidable manual S 191 0.2068 114 -0.01 75
IV.EPOZ.HNZ. 2020-11-27T19:40:40.29 0.3 undecidable manual S 356 0.1844 117 -0.26 71
IV.SSY.HHZ. 2020-11-27T19:40:39.89 0.1 undecidable manual P 198 0.3462 50 -0.16 94
IV.ENIC.HHZ. 2020-11-27T19:40:39.72 3.0 undecidable manual P 0
IV.HLNI.HHZ. 2020-11-27T19:40:39.01 0.1 undecidable manual P 242 0.2986 50 -0.24 94
IV.HCRL.HHZ. 2020-11-27T19:40:38.43 0.1 undecidable manual P 214 0.2464 50 0.08 98
IV.HAGA.HHZ. 2020-11-27T19:40:37.65 0.1 undecidable manual P 191 0.2068 114 0 100
IV.AGST.EHZ. 2020-11-27T19:40:37.93 0.1 undecidable manual P 176 0.232 50 -0.17 96
IV.EPOZ.HNZ. 2020-11-27T19:40:37.67 0.1 undecidable manual P 356 0.1844 117 0.48 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HAGA.HHN. ML:1.4 0.0001685 1.02 AML other m 2020-11-27T19:40:41.81
IV.HAGA.HHE. ML:1.5 0.000185 1.4 AML other m 2020-11-27T19:40:42.97
IV.AGST.EHN. ML:1.8 0.0003195 0.24 AML other m 2020-11-27T19:40:42.57
IV.AGST.EHE. ML:1.9 0.000448 0.16 AML other m 2020-11-27T19:40:42.55
IV.HCRL.HHN. ML:1.7 0.000249 0.12 AML other m 2020-11-27T19:40:43.19
IV.HCRL.HHE. ML:1.6 0.0002185 0.24 AML other m 2020-11-27T19:40:43.26
IV.HLNI.HHN. ML:1.5 0.000142 0.78 AML other m 2020-11-27T19:40:44.09
IV.HLNI.HHE. ML:1.5 0.000144 0.64 AML other m 2020-11-27T19:40:45.63
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download