Earthquake with magnitude of ML 1.6 on date 27-10-2020 and time 04:44:28 (UTC) in region 4 km N Troina (EN)

A magnitude ML 1.6 earthquake occured in region: 4 km N Troina (EN), on

  • 27-10-2020 04:44:28 (UTC)
  • 27-10-2020 05:44:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.822, 14.599 at 36 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
Troina EN 4 9373 9373
Cerami EN 8 2006 11379
San Teodoro ME 9 1403 12782
CesarĂ² ME 10 2439 15221
Capizzi ME 11 3176 18397
Gagliano Castelferrato EN 14 3593 21990
Maniace CT 19 3765 25755
Regalbuto EN 19 7277 33032
Nicosia EN 19 13899 46931
Agira EN 19 8345 55276

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km W of Acireale (52622 inhabitants)
56 Km NW of Catania (314555 inhabitants)
60 Km NE of Caltanissetta (63360 inhabitants)
90 Km NE of Gela (75827 inhabitants)
94 Km W of Messina (238439 inhabitants)
97 Km N of Vittoria (63339 inhabitants)
97 Km W of Reggio di Calabria (183035 inhabitants)
100 Km E of Bagheria (55387 inhabitants)
100 Km N of Ragusa (73313 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.6 2020-10-27
04:44:28
37.8222 14.5988 36 2021-02-26
14:56:06
Bollettino Sismico Italiano INGV 84849301
Reviewed
Rev100
ML 1.7 2020-10-27
04:44:28
37.8547 14.6102 41 2020-10-27
05:56:59
Sala Sismica INGV-Roma 84171121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-27 04:44:28 ± 0.12
Latitude 37.8222 ± 0.0063
Longitude 14.5988 ± 0.0091
Depth (km) 36 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84849301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 711
Semi-minor axis of confidence ellipse (meter) 519
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 710
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.11421
Epicentral distance of station farthest from the epicenter (degree) 0.69428
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 84849301
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-20 08:00:34

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 84171121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-27 05:56:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2020-10-27T04:44:53.10 0.6 undecidable manual S 140 0.6943 54 0.31 44
IV.HCRL.HHZ. 2020-10-27T04:44:51.63 0.6 undecidable manual S 147 0.6394 113 0.27 45
IV.HLNI.HHZ. 2020-10-27T04:44:48.34 0.3 undecidable manual S 155 0.5207 118 0.16 71
IV.PLLN.EHZ. 2020-10-27T04:44:45.43 0.6 undecidable manual S 296 0.3975 125 0.36 46
IV.MUCR.HHZ. 2020-10-27T04:44:43.27 0.6 undecidable manual S 44 0.3094 133 0.23 49
IV.HAGA.HHZ. 2020-10-27T04:44:42.38 0.3 undecidable manual P 140 0.6943 54 -0.2 67
IV.MSFR.HHZ. 2020-10-27T04:44:41.02 0.3 undecidable manual S 358 0.2113 144 -0.09 76
IV.HCRL.HHZ. 2020-10-27T04:44:41.58 0.6 undecidable manual P 147 0.6394 113 -0.17 46
IV.AIO.HHE. 2020-10-27T04:44:40.25 0.1 undecidable manual P 73 0.5216 118 0.31 92
IV.HLNI.HHZ. 2020-10-27T04:44:39.63 0.1 undecidable manual P 155 0.5207 118 -0.28 92
IV.GALF.HHZ. 2020-10-27T04:44:39.90 0.6 undecidable manual S 193 0.1142 159 0.17 51
IV.PLLN.EHZ. 2020-10-27T04:44:38.32 0.1 undecidable manual P 296 0.3975 125 0.2 95
IV.PETRA.HHZ. 2020-10-27T04:44:37.94 0.1 undecidable manual P 272 0.3822 126 0.04 98
IV.CAGR.HHE. 2020-10-27T04:44:36.01 0.3 undecidable manual P 201 0.2149 144 0.15 75
IV.MUCR.HHZ. 2020-10-27T04:44:36.90 0.1 undecidable manual P 44 0.3094 133 -0.04 100
IV.EPZF.HHZ. 2020-10-27T04:44:35.88 1.0 undecidable manual P 89 0.2041 145 0.13 25
IV.MSFR.HHZ. 2020-10-27T04:44:35.46 0.1 undecidable manual P 358 0.2113 144 -0.37 96
IV.GALF.HHZ. 2020-10-27T04:44:34.57 0.1 negative manual P 193 0.1142 159 -0.47 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHE. ML:1.7 0.0001795 0.94 AML other m 2020-10-27T04:44:41.25
IV.MSFR.HHN. ML:1.5 9.46E-5 1.28 AML other m 2020-10-27T04:44:42.81
IV.MSFR.HHE. ML:1.4 7.34E-5 0.44 AML other m 2020-10-27T04:44:42.53
IV.GALF.HHN. ML:1.8 0.000225 1.64 AML other m 2020-10-27T04:44:42.90
IV.MUCR.HHN. ML:1.5 7.775E-5 1.04 AML other m 2020-10-27T04:44:45.23
IV.MUCR.HHE. ML:1.3 4.755E-5 0.3 AML other m 2020-10-27T04:44:45.75
IV.PETRA.HHN. ML:1.5 7.335E-5 1.28 AML other m 2020-10-27T04:44:49.12
IV.PETRA.HHE. ML:1.6 9.04E-5 1.48 AML other m 2020-10-27T04:44:49.97
IV.HLNI.HHE. ML:1.5 5.865E-5 1.04 AML other m 2020-10-27T04:44:50.69
IV.HLNI.HHN. ML:1.6 7.435E-5 1.16 AML other m 2020-10-27T04:44:51.05
IV.HCRL.HHN. ML:1.8 8.695E-5 0.68 AML other m 2020-10-27T04:44:52.28
IV.HCRL.HHE. ML:2 0.0001395 0.18 AML other m 2020-10-27T04:44:53.38
IV.HAGA.HHE. ML:2.2 0.0002035 0.42 AML other m 2020-10-27T04:44:53.73
IV.HAGA.HHN. ML:1.9 9.76E-5 1.66 AML other m 2020-10-27T04:44:53.85
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download