Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 11-03-2021 and time 20:01:47 (Italy) in region 12 km W Milo (CT)

A magnitude ML 1.9 earthquake occured in region: 12 km W Milo (CT), on

  • 11-03-2021 19:01:47 (UTC)
  • 11-03-2021 20:01:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7500, 14.9860 at 4 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 12 1087 1087
Zafferana Etnea CT 12 9517 10604
Ragalna CT 14 3924 14528
Maletto CT 14 3920 18448
Sant'Alfio CT 14 1582 20030
Bronte CT 14 19172 39202
Randazzo CT 15 10900 50102
Santa Venerina CT 15 8592 58694
Nicolosi CT 15 7463 66157
Biancavilla CT 16 24007 90164
Pedara CT 16 14102 104266
Adrano CT 17 36122 140388
Trecastagni CT 17 10910 151298
Santa Maria di Licodia CT 17 7641 158939
Linguaglossa CT 17 5403 164342
Belpasso CT 18 28108 192450
Giarre CT 18 27659 220109
Moio Alcantara ME 18 717 220826
Piedimonte Etneo CT 18 3963 224789
Viagrande CT 18 8563 233352
Mascali CT 19 14282 247634
Santa Domenica Vittoria ME 19 980 248614
Castiglione di Sicilia CT 19 3215 251829
Riposto CT 19 14838 266667
Malvagna ME 20 733 267400
San Pietro Clarenza CT 20 7743 275143
Aci Bonaccorsi CT 20 3524 278667

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of Acireale (52622 inhabitants)
29 Km NW of Catania (314555 inhabitants)
70 Km SW of Reggio di Calabria (183035 inhabitants)
70 Km SW of Messina (238439 inhabitants)
81 Km NW of Siracusa (122291 inhabitants)
86 Km E of Caltanissetta (63360 inhabitants)
94 Km N of Ragusa (73313 inhabitants)
97 Km NE of Vittoria (63339 inhabitants)
100 Km NE of Gela (75827 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 1.9 2021-03-11
19:01:47		 37.7497 14.9857 4 2021-07-12
16:55:03		 Bollettino Sismico Italiano INGV 88411141
Reviewed
Rev200 		ML 2.1 2021-03-11
19:01:46		 37.744 15.001 0 2021-04-22
19:01:11		 Sala Operativa INGV_OE (Catania) 88016401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-11 19:01:47 ± 0.13
Latitude 37.7497 ± 0.0036
Longitude 14.9857 ± 0.0057
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 88411141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 490
Semi-minor axis of confidence ellipse (meter) 95
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 288
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 40
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33365
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 88016401
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-03-11 23:44:56

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 88411141
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-22 19:08:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ACATE.EHZ. 2021-03-11T19:02:13.05 3.0 undecidable manual S -0.62 0
IV.GALF.HNZ. 2021-03-11T19:01:54.62 0.6 undecidable manual P 263 37.0296 97 -0.25 47
IV.AIO.HHZ. 2021-03-11T19:01:54.36 0.3 undecidable manual P 41 32.745 98 0.34 69
IV.NOV.HHZ. 2021-03-11T19:01:54.41 0.6 undecidable manual P 23 33.5442 97 0.23 47
IV.MUCR.HHZ. 2021-03-11T19:01:53.90 0.3 undecidable manual P 343 33.9438 97 -0.36 69
IV.EPOZ.HNZ. 2021-03-11T19:01:52.16 0.6 undecidable manual P 116 19.7691 102 0.7 42
IV.ECTS.HHZ. 2021-03-11T19:01:51.18 0.6 undecidable manual P 39 18.87 103 -0.1 50
IV.ESML.HHZ. 2021-03-11T19:01:51.08 0.6 undecidable manual P 213 17.3715 104 0.1 50
IV.EMFO.HHZ. 2021-03-11T19:01:51.27 0.3 undecidable manual S 100 9.2796 115 0.31 73
IV.EFIU.HHZ. 2021-03-11T19:01:51.85 0.6 undecidable manual P 77 20.1687 102 0.31 47
IV.ESAL.HHZ. 2021-03-11T19:01:50.47 0.6 undecidable manual P 87 13.0758 108 0.31 48
IV.EPZF.HHZ. 2021-03-11T19:01:50.44 0.6 undecidable manual P 306 13.9749 107 0.11 50
IV.ESLN.HHZ. 2021-03-11T19:01:50.37 0.3 undecidable manual S 189 6.2937 125 0.3 73
IV.ESPC.HHZ. 2021-03-11T19:01:50.40 0.6 undecidable manual S 150 7.2927 121 0.04 51
IV.EVRN.HHZ. 2021-03-11T19:01:50.89 0.6 undecidable manual P 117 14.7741 106 0.41 47
IV.ESVO.HHZ. 2021-03-11T19:01:50.28 0.3 undecidable manual S 307 4.2957 136 0.77 63
IV.EMNR.HHZ. 2021-03-11T19:01:50.72 0.3 undecidable manual S 25 8.2806 118 0.09 76
IV.ENIC.HHZ. 2021-03-11T19:01:50.33 0.6 undecidable manual P 166 13.4754 108 0.09 50
IV.EMPL.HHZ. 2021-03-11T19:01:49.38 0.1 undecidable manual P 190 7.9809 119 0.17 100
IV.EMCN.HHZ. 2021-03-11T19:01:49.69 0.6 undecidable manual S 42 6.1938 125 -0.35 48
IV.EMFO.HHZ. 2021-03-11T19:01:49.16 0.3 undecidable manual P 100 9.2796 115 -0.3 73
IV.EMSG.HHZ. 2021-03-11T19:01:49.35 0.6 undecidable manual P 338 8.4804 117 0.04 51
IV.ECZM.HHZ. 2021-03-11T19:01:49.31 0.3 undecidable manual P 254 7.3815 120 0.19 75
IV.ECBD.HHZ. 2021-03-11T19:01:49.19 0.6 undecidable manual P 69 9.4794 115 -0.3 48
IV.ESCV.HHZ. 2021-03-11T19:01:49.96 0.6 undecidable manual P 269 14.9739 106 -0.56 45
IV.EPIT.HHZ. 2021-03-11T19:01:49.51 0.3 undecidable manual P 42 9.2796 115 0.06 76
IV.ECHR.HNZ. 2021-03-11T19:01:49.64 0.6 undecidable manual P 222 9.4794 115 0.15 50
IV.ESVO.HHZ. 2021-03-11T19:01:48.79 0.6 undecidable manual P 307 4.2957 136 0.17 50
IV.EMNR.HHZ. 2021-03-11T19:01:48.90 0.3 undecidable manual P 25 8.2806 118 -0.37 72
IV.EMFS.HHZ. 2021-03-11T19:01:48.90 0.6 undecidable manual S 162 3.4965 141 -0.44 48
IV.EMCN.HHZ. 2021-03-11T19:01:48.32 0.6 undecidable manual P 42 6.1938 125 -0.6 45
IV.ESLN.HHZ. 2021-03-11T19:01:48.64 0.1 undecidable manual P 189 6.2937 125 -0.3 98
IV.ESPC.HHZ. 2021-03-11T19:01:48.90 0.3 undecidable manual P 150 7.2927 121 -0.21 74
IV.EMFS.HHZ. 2021-03-11T19:01:47.73 0.3 undecidable manual P 162 3.4965 141 -0.79 63
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMPL.HHE. ML:0.0 0.005034309000000001 0.4608 AML other m 2021-03-11T19:01:54.93
IV.EMPL.HHN. ML:0.0 0.0064383315 1.0368 AML other m 2021-03-11T19:01:54.00
IV.EPIT.HHE. ML:2.3 0.0033868795 1.3568 AML other m 2021-03-11T19:01:55.41
IV.EPIT.HHN. ML:2.3 0.0038763935 0.6144 AML other m 2021-03-11T19:01:54.60
IV.EMSG.HHE. ML:0.0 0.0015726434999999998 0.448 AML other m 2021-03-11T19:01:52.96
IV.EMSG.HHN. ML:0.0 0.0022620185 0.8064 AML other m 2021-03-11T19:01:54.69
IV.ENIC.HHN. ML:2.1 0.001730774 0.5248 AML other m 2021-03-11T19:01:56.68
IV.ENIC.HNN. ML:2.2 0.0021611625 0.5504 AML other m 2021-03-11T19:01:56.51
IV.ENIC.HHE. ML:1.7 0.00071108225 0.5632 AML other m 2021-03-11T19:01:57.38
IV.ENIC.HNE. ML:1.9 0.001045827935 0.5888 AML other m 2021-03-11T19:01:58.07
IV.ESML.HHE. ML:1.7 0.00052147495 0.64 AML other m 2021-03-11T19:01:59.89
IV.ESML.HHN. ML:1.8 0.0005948066999999999 0.576 AML other m 2021-03-11T19:02:00.69
IV.ESML.HNE. ML:1.7 0.0005306148 0.6144 AML other m 2021-03-11T19:01:59.89
IV.ESML.HNN. ML:1.8 0.00058949305 0.6656 AML other m 2021-03-11T19:02:01.32
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
Waveforms Seismic signals in miniseed + resp format Download