Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 06-05-2021 and time 15:39:10 (Italy) in region 2 km E Milo (CT)

A magnitude ML 1.8 earthquake occured in region: 2 km E Milo (CT), on

  • 06-05-2021 13:39:10 (UTC)
  • 06-05-2021 15:39:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7160, 15.1380 at 20 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
Milo CT 2 1087 1087
Santa Venerina CT 3 8592 9679
Sant'Alfio CT 3 1582 11261
Zafferana Etnea CT 4 9517 20778
Giarre CT 4 27659 48437
Riposto CT 6 14838 63275
Mascali CT 7 14282 77557
Fiumefreddo di Sicilia CT 11 9623 87180
Piedimonte Etneo CT 11 3963 91143
Acireale CT 12 52622 143765
Trecastagni CT 12 10910 154675
Aci Sant'Antonio CT 12 17984 172659
Viagrande CT 12 8563 181222
Aci Catena CT 13 29851 211073
Pedara CT 13 14102 225175
Aci Bonaccorsi CT 13 3524 228699
Linguaglossa CT 14 5403 234102
Calatabiano CT 14 5308 239410
Nicolosi CT 15 7463 246873
Valverde CT 15 7840 254713
San Giovanni la Punta CT 16 23060 277773
Tremestieri Etneo CT 17 20589 298362
San Gregorio di Catania CT 17 11966 310328
Mascalucia CT 18 31958 342286
Aci Castello CT 18 18723 361009
Gaggi ME 18 3184 364193
Sant'Agata li Battiati CT 18 9479 373672
Gravina di Catania CT 18 25838 399510
Giardini-Naxos ME 19 9415 408925
Castiglione di Sicilia CT 19 3215 412140
San Pietro Clarenza CT 19 7743 419883
Belpasso CT 20 28108 447991
Taormina ME 20 10960 458951
Ragalna CT 20 3924 462875

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km N of Acireale (52622 inhabitants)
24 Km N of Catania (314555 inhabitants)
62 Km SW of Reggio di Calabria (183035 inhabitants)
65 Km SW of Messina (238439 inhabitants)
74 Km N of Siracusa (122291 inhabitants)
95 Km NE of Ragusa (73313 inhabitants)
98 Km E of Caltanissetta (63360 inhabitants)
100 Km NE of Vittoria (63339 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 2021-05-06
13:39:10		 37.7162 15.1383 20 2021-12-29
11:12:03		 Bollettino Sismico Italiano INGV 90784381
Reviewed
Rev200 		ML 1.3 2021-05-06
13:39:10		 37.729 15.145 15 2021-10-08
10:39:28		 Sala Operativa INGV_OE (Catania) 89837531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-06 13:39:10 ± 0.07
Latitude 37.7162 ± 0.0036
Longitude 15.1383 ± 0.0057
Depth (km) 20 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90784381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 439
Semi-minor axis of confidence ellipse (meter) 247
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 96
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.02698
Epicentral distance of station farthest from the epicenter (degree) 0.75633
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 90784381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-04 10:13:08

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 89837531
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-05-06 13:47:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2021-05-06T13:39:35.34 0.6 undecidable manual S 181 83.9493 97 0.12 44
IV.MPNC.HHN. 2021-05-06T13:39:26.66 0.6 undecidable manual S 21 51.3153 102 0.04 47
IV.HLNI.HHZ. 2021-05-06T13:39:25.44 0.6 undecidable manual S 210 47.0196 104 -0.06 47
IV.HAVL.HHZ. 2021-05-06T13:39:24.91 0.6 undecidable manual P 181 83.9493 97 0.26 43
IV.SSY.HHE. 2021-05-06T13:39:21.46 0.6 undecidable manual P 185 62.1933 100 0.12 46
IV.AIO.HHZ. 2021-05-06T13:39:21.31 0.6 undecidable manual S 16 29.4483 114 0.24 47
IV.MSFR.HHZ. 2021-05-06T13:39:20.97 0.1 undecidable manual P 307 59.496 100 0.05 93
IV.GALF.HHZ. 2021-05-06T13:39:19.58 0.1 undecidable manual P 269 50.2164 103 0.06 95
IV.MPNC.HHN. 2021-05-06T13:39:19.67 0.1 undecidable manual P 21 51.3153 102 -0.02 95
IV.HCRL.HHE. 2021-05-06T13:39:19.02 0.6 undecidable manual P 191 48.9177 103 -0.31 45
IV.HAGA.HHZ. 2021-05-06T13:39:19.02 0.1 undecidable manual P 178 47.8188 103 -0.15 93
IV.HLNI.HHZ. 2021-05-06T13:39:18.91 0.6 undecidable manual P 210 47.0196 104 -0.14 47
IV.ECZM.HHN. 2021-05-06T13:39:18.96 0.6 undecidable manual S 275 20.6682 126 -0.05 50
IV.ECNE.HHN. 2021-05-06T13:39:18.07 0.6 undecidable manual S 295 13.1757 141 0.52 46
IV.ECTS.HHZ. 2021-05-06T13:39:18.10 0.3 undecidable manual S 355 18.4704 129 -0.45 69
IV.ESVO.HHE. 2021-05-06T13:39:18.26 0.6 undecidable manual S 291 17.9709 130 -0.18 49
IV.EMNR.HHZ. 2021-05-06T13:39:18.16 0.6 undecidable manual S 319 14.874 137 0.31 48
IV.EMSG.HHN. 2021-05-06T13:39:18.93 0.6 undecidable manual S 305 20.1687 126 0.01 50
IV.MUCR.HHE. 2021-05-06T13:39:18.62 0.6 undecidable manual P 328 43.0236 105 0.17 47
IV.ESLN.HHZ. 2021-05-06T13:39:17.52 0.6 undecidable manual S 260 14.5743 137 -0.28 48
IV.EMPL.HHZ. 2021-05-06T13:39:17.65 0.3 undecidable manual S 254 15.2736 136 -0.28 72
IV.EMFS.HHE. 2021-05-06T13:39:17.30 0.3 undecidable manual S 272 12.2766 143 -0.11 75
IV.ECBD.HHN. 2021-05-06T13:39:17.20 0.6 undecidable manual S 327 8.4804 153 0.35 48
IV.EPIT.HHZ. 2021-05-06T13:39:17.48 0.3 undecidable manual S 326 12.7761 141 0 77
IV.EPOZ.HHE. 2021-05-06T13:39:17.14 0.3 undecidable manual S 138 6.5934 158 0.49 69
IV.EVRN.HHN. 2021-05-06T13:39:16.41 0.6 undecidable manual S 185 2.997 170 0.02 52
IV.AIO.HHZ. 2021-05-06T13:39:16.37 0.3 undecidable manual P 16 29.4483 114 -0.11 73
IV.ESAL.HHZ. 2021-05-06T13:39:16.49 0.3 undecidable manual S 356 4.2957 166 0.02 77
IV.EPZF.HHZ. 2021-05-06T13:39:16.62 0.1 undecidable manual P 296 27.4503 117 0.43 91
IV.EFIU.HHZ. 2021-05-06T13:39:16.90 0.3 undecidable manual S 38 10.2786 148 -0.2 74
IV.EMFO.HHE. 2021-05-06T13:39:16.36 0.3 undecidable manual S 297 4.7952 164 -0.13 76
IV.EMSG.HHN. 2021-05-06T13:39:15.01 0.6 undecidable manual P 305 20.1687 126 -0.23 48
IV.ECHR.HHE. 2021-05-06T13:39:15.12 1.0 undecidable manual P 261 20.0688 127 -0.1 25
IV.ECZM.HHN. 2021-05-06T13:39:15.38 0.1 undecidable manual P 275 20.6682 126 0.08 99
IV.ESVO.HHE. 2021-05-06T13:39:15.13 0.6 undecidable manual P 291 17.9709 130 0.16 49
IV.EPIT.HHZ. 2021-05-06T13:39:14.51 0.1 undecidable manual P 326 12.7761 141 0.1 100
IV.EPOZ.HHE. 2021-05-06T13:39:14.20 0.6 undecidable manual P 138 6.5934 158 0.26 49
IV.ESLN.HHZ. 2021-05-06T13:39:14.87 0.6 undecidable manual P 260 14.5743 137 0.27 48
IV.EMPL.HHZ. 2021-05-06T13:39:14.36 0.6 undecidable manual P 254 15.2736 136 -0.31 48
IV.EVRN.HHN. 2021-05-06T13:39:14.19 0.6 undecidable manual P 185 2.997 170 0.41 48
IV.EMFS.HHE. 2021-05-06T13:39:14.22 0.3 undecidable manual P 272 12.2766 143 -0.15 74
IV.ECNE.HHN. 2021-05-06T13:39:14.84 0.1 undecidable manual P 295 13.1757 141 0.39 94
IV.ECTS.HHZ. 2021-05-06T13:39:14.72 0.6 undecidable manual P 355 18.4704 129 -0.31 47
IV.EMCN.HHN. 2021-05-06T13:39:14.02 0.1 undecidable manual P 312 12.3765 142 -0.36 95
IV.EMNR.HHZ. 2021-05-06T13:39:14.86 0.1 undecidable manual P 319 14.874 137 0.23 97
IV.EFIU.HHZ. 2021-05-06T13:39:13.75 0.6 undecidable manual P 38 10.2786 148 -0.44 47
IV.ECBD.HHN. 2021-05-06T13:39:13.94 0.3 undecidable manual P 327 8.4804 153 -0.11 75
IV.EMFO.HHE. 2021-05-06T13:39:13.48 0.6 undecidable manual P 297 4.7952 164 -0.36 48
IV.ESAL.HHZ. 2021-05-06T13:39:13.55 0.3 undecidable manual P 356 4.2957 166 -0.28 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESAL.HHN. ML:2.0 0.000776 1.12 AML other m 2021-05-06T13:39:17.63
IV.ESAL.HHE. ML:2.0 0.0008525000000000001 0.2 AML other m 2021-05-06T13:39:17.62
IV.EMPL.HHE. ML:1.9 0.000509 0.18 AML other m 2021-05-06T13:39:18.35
IV.ENIC.HHE. ML:2.0 0.0007130000000000001 1.18 AML other m 2021-05-06T13:39:19.05
IV.ECTS.HHE. ML:1.7 0.0003 1.26 AML other m 2021-05-06T13:39:19.68
IV.ECTS.HHN. ML:1.7 0.000277 0.88 AML other m 2021-05-06T13:39:19.15
IV.EMPL.HHN. ML:2.1 0.0009080000000000001 0.2 AML other m 2021-05-06T13:39:19.62
IV.EPOZ.HHN. ML:1.7 0.000422 1.42 AML other m 2021-05-06T13:39:19.09
IV.EPIT.HHN. ML:2.1 0.0008694999999999999 0.38 AML other m 2021-05-06T13:39:20.03
IV.ENIC.HHN. ML:2.2 0.001016 0.22 AML other m 2021-05-06T13:39:20.59
IV.EPOZ.HHE. ML:1.7 0.00038649999999999996 0.66 AML other m 2021-05-06T13:39:21.06
IV.EMSG.HHN. ML:1.7 0.0002755 0.5 AML other m 2021-05-06T13:39:21.74
IV.EPIT.HHE. ML:1.9 0.000614 0.26 AML other m 2021-05-06T13:39:21.67
IV.EMSG.HHE. ML:1.5 0.0001895 0.44 AML other m 2021-05-06T13:39:21.90
IV.AIO.HHE. ML:1.5 0.00011949999999999999 0.22 AML other m 2021-05-06T13:39:22.19
IV.AIO.HHN. ML:1.4 0.000117 1.18 AML other m 2021-05-06T13:39:23.84
IV.HAVL.HHE. ML:1.7 0.0000664 0.48 AML other m 2021-05-06T13:39:36.99
IV.HAVL.HHN. ML:1.9 0.0001028 0.28 AML other m 2021-05-06T13:39:37.00
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