Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 27-05-2020 and time 20:19:39 (Italy) in region 11 km NW Adrano (CT)

A magnitude ML 1.8 earthquake occured in region: 11 km NW Adrano (CT), on

  • 27-05-2020 18:19:39 (UTC)
  • 27-05-2020 20:19:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7180, 14.7360 at 25 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Adrano CT 11 36122 36122
Centuripe EN 11 5470 41592
Regalbuto EN 11 7277 48869
Bronte CT 12 19172 68041
Troina EN 14 9373 77414
Cesarò ME 14 2439 79853
Biancavilla CT 15 24007 103860
San Teodoro ME 15 1403 105263
Catenanuova EN 17 4866 110129
Maletto CT 17 3920 114049
Maniace CT 17 3765 117814
Santa Maria di Licodia CT 18 7641 125455
Gagliano Castelferrato EN 18 3593 129048
Agira EN 20 8345 137393

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of Catania (314555 inhabitants)
40 Km W of Acireale (52622 inhabitants)
64 Km E of Caltanissetta (63360 inhabitants)
84 Km NE of Gela (75827 inhabitants)
87 Km N of Vittoria (63339 inhabitants)
88 Km N of Ragusa (73313 inhabitants)
88 Km NW of Siracusa (122291 inhabitants)
89 Km SW of Messina (238439 inhabitants)
91 Km SW of Reggio di Calabria (183035 inhabitants)
96 Km N of Modica (54633 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 1.8 2020-05-27
18:19:39		 37.7182 14.7358 25 2020-11-19
12:37:00		 Bollettino Sismico Italiano INGV 82776941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-27 18:19:39 ± 0.2
Latitude 37.7182 ± 0.0090
Longitude 14.7358 ± 0.0136
Depth (km) 25 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82776941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1207
Semi-minor axis of confidence ellipse (meter) 389
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 118
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
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) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.13400
Epicentral distance of station farthest from the epicenter (degree) 0.62143
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 82776941
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-10 00:12:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2020-05-27T18:19:59.52 0.6 undecidable manual S 142 60.5949 106 0.44 42
IV.AIO.HHE. 2020-05-27T18:19:57.88 0.6 undecidable manual S 57 51.8037 109 1.03 35
IV.HLNI.HHZ. 2020-05-27T18:19:54.74 0.6 undecidable manual S 164 42.7239 114 0.15 46
IV.RAFF.HHE. 2020-05-27T18:19:52.29 0.6 undecidable manual P 211 64.0914 105 0.79 37
IV.SSY.HHZ. 2020-05-27T18:19:51.99 0.3 undecidable manual P 154 68.9754 104 -0.23 67
IV.AIO.HHE. 2020-05-27T18:19:50.03 0.1 undecidable manual P 57 51.8037 109 0.34 89
IV.HAGA.HHZ. 2020-05-27T18:19:50.43 0.3 undecidable manual P 142 60.5949 106 -0.55 63
IV.GALF.HHZ. 2020-05-27T18:19:49.23 0.6 undecidable manual S 267 14.874 146 0.51 46
IV.EPZF.HHZ. 2020-05-27T18:19:48.92 0.6 undecidable manual S 42 15.873 144 0.06 51
IV.HLNI.HHZ. 2020-05-27T18:19:48.07 0.1 undecidable manual P 164 42.7239 114 -0.32 92
IV.MSFR.HHE. 2020-05-27T18:19:47.50 0.1 undecidable manual P 340 37.2294 118 -0.13 94
IV.CAGR.HHE. 2020-05-27T18:19:47.25 1.0 undecidable manual P 243 23.3544 132 1.39 15
IV.MUCR.HHE. 2020-05-27T18:19:47.57 0.3 undecidable manual P 18 38.0286 117 -0.16 70
IV.ESML.HHZ. 2020-05-27T18:19:45.20 0.1 undecidable manual P 131 16.7721 142 0.03 100
IV.EMSG.HHE. 2020-05-27T18:19:45.58 0.6 undecidable manual P 59 21.9669 134 -0.12 49
IV.GALF.HHZ. 2020-05-27T18:19:44.87 0.1 positive manual P 267 14.874 146 -0.13 98
IV.ECHR.HNZ. 2020-05-27T18:19:44.90 0.3 undecidable manual P 103 15.9729 144 -0.19 73
IV.EPZF.HHZ. 2020-05-27T18:19:44.66 0.1 negative manual P 42 15.873 144 -0.43 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHE. ML:2.1 0.0007145 0.58 AML other m 2020-05-27T18:19:50.28
IV.GALF.HHN. ML:2.0 0.0005245 1.74 AML other m 2020-05-27T18:19:51.00
IV.HLNI.HHE. ML:1.5 0.00008965000000000001 0.3 AML other m 2020-05-27T18:19:55.19
IV.HLNI.HHN. ML:1.5 0.00008515000000000001 0.9 AML other m 2020-05-27T18:19:56.07
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