Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 28-03-2021 and time 08:54:54 (Italy) in region 11 km W Milo (CT)

A magnitude ML 2.3 earthquake occured in region: 11 km W Milo (CT), on

  • 28-03-2021 06:54:54 (UTC)
  • 28-03-2021 08:54:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7550, 15.0030 at 2 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 11 1087 1087
Zafferana Etnea CT 11 9517 10604
Sant'Alfio CT 13 1582 12186
Santa Venerina CT 14 8592 20778
Maletto CT 15 3920 24698
Randazzo CT 15 10900 35598
Ragalna CT 15 3924 39522
Bronte CT 15 19172 58694
Nicolosi CT 16 7463 66157
Linguaglossa CT 16 5403 71560
Pedara CT 16 14102 85662
Giarre CT 16 27659 113321
Moio Alcantara ME 17 717 114038
Piedimonte Etneo CT 17 3963 118001
Trecastagni CT 17 10910 128911
Mascali CT 17 14282 143193
Biancavilla CT 17 24007 167200
Castiglione di Sicilia CT 18 3215 170415
Riposto CT 18 14838 185253
Viagrande CT 18 8563 193816
Adrano CT 18 36122 229938
Belpasso CT 18 28108 258046
Santa Domenica Vittoria ME 18 980 259026
Santa Maria di Licodia CT 18 7641 266667
Fiumefreddo di Sicilia CT 19 9623 276290
Malvagna ME 19 733 277023
Aci Bonaccorsi CT 20 3524 280547
Aci Sant'Antonio CT 20 17984 298531
Roccella Valdemone ME 20 666 299197

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Acireale (52622 inhabitants)
29 Km N of Catania (314555 inhabitants)
69 Km SW of Reggio di Calabria (183035 inhabitants)
69 Km SW of Messina (238439 inhabitants)
81 Km NW of Siracusa (122291 inhabitants)
88 Km E of Caltanissetta (63360 inhabitants)
95 Km N of Ragusa (73313 inhabitants)
99 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 2.3 2021-03-28
06:54:54		 37.7552 15.0027 2 2021-07-12
16:55:12		 Bollettino Sismico Italiano INGV 90299461
Reviewed
Rev200 		ML 2.2 2021-03-28
06:54:53		 37.739 15.017 0 2021-05-20
16:55:38		 Sala Operativa INGV_OE (Catania) 88545531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-28 06:54:54 ± 0.11
Latitude 37.7552 ± 0.0063
Longitude 15.0027 ± 0.0091
Depth (km) 2 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90299461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 910
Semi-minor axis of confidence ellipse (meter) 610
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 299
Circular confidence region, given by single value of horizontal uncertainty (meter) 910.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.49
Epicentral distance of station closest to the epicenter (degree) 0.00989
Epicentral distance of station farthest from the epicenter (degree) 0.16907
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 90299461
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-20 16:55:21

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 88545531
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-03-28 07:05:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ESML.HNE. 2021-03-28T06:54:59.29 0.6 undecidable manual P 215 18.6702 96 1.07 36
IV.ECHR.HHE. 2021-03-28T06:54:59.45 0.6 undecidable manual S 226 10.9779 101 1.11 35
IV.ECZM.HHN. 2021-03-28T06:54:59.11 0.6 undecidable manual S 253 9.0798 103 1.43 30
IV.EFIU.HHZ. 2021-03-28T06:54:59.50 0.6 undecidable manual P 78 18.5703 96 1.29 32
IV.EPOZ.HHZ. 2021-03-28T06:54:58.87 0.6 undecidable manual P 119 18.7701 96 0.63 43
IV.EPZF.HHZ. 2021-03-28T06:54:58.15 0.6 undecidable manual P 301 14.874 98 0.68 43
IV.ECTS.HHZ. 2021-03-28T06:54:58.15 0.3 undecidable manual P 36 17.4714 97 0.17 73
IV.ESCV.HHZ. 2021-03-28T06:54:58.85 0.3 undecidable manual P 267 16.4724 97 1.07 54
IV.EMNR.HHZ. 2021-03-28T06:54:58.14 0.6 undecidable manual S 17 7.0929 106 1.1 36
IV.EMFO.HHE. 2021-03-28T06:54:58.49 0.6 undecidable manual S 106 7.9809 105 1.17 34
IV.ESPC.HHN. 2021-03-28T06:54:57.49 0.6 undecidable manual S 163 7.2927 106 0.4 47
IV.ESLN.HHZ. 2021-03-28T06:54:57.33 0.6 undecidable manual S 200 7.2927 106 0.24 49
IV.EMPL.HHZ. 2021-03-28T06:54:57.87 0.6 undecidable manual S 199 8.88 103 0.23 49
IV.ESAL.HHZ. 2021-03-28T06:54:57.35 0.3 undecidable manual P 90 11.5773 100 0.54 68
IV.EMPL.HHZ. 2021-03-28T06:54:56.01 0.3 undecidable manual P 199 8.88 103 -0.28 73
IV.EMSG.HHZ. 2021-03-28T06:54:56.17 0.3 undecidable manual P 327 8.5803 104 -0.07 76
IV.ECHR.HHE. 2021-03-28T06:54:56.94 0.3 undecidable manual P 226 10.9779 101 0.24 73
IV.ECZM.HHN. 2021-03-28T06:54:56.75 0.3 undecidable manual P 253 9.0798 103 0.43 70
IV.ECBD.HHN. 2021-03-28T06:54:56.04 0.3 undecidable manual P 69 7.881 105 -0.05 76
IV.EMCN.HHN. 2021-03-28T06:54:56.73 0.6 undecidable manual S 34 4.7952 114 0.45 47
IV.EMCN.HHN. 2021-03-28T06:54:55.03 0.1 undecidable manual P 34 4.7952 114 -0.48 93
IV.EMFO.HHE. 2021-03-28T06:54:55.85 0.3 undecidable manual P 106 7.9809 105 -0.26 73
IV.EPIT.HHZ. 2021-03-28T06:54:55.56 0.3 undecidable manual P 37 7.7811 105 -0.52 69
IV.ESPC.HHN. 2021-03-28T06:54:55.65 0.1 undecidable manual P 163 7.2927 106 -0.33 96
IV.EMFS.HHE. 2021-03-28T06:54:55.81 0.3 undecidable manual S 186 3.996 118 -0.21 74
IV.ESLN.HHZ. 2021-03-28T06:54:55.44 0.1 undecidable manual P 200 7.2927 106 -0.54 91
IV.ESVO.HHE. 2021-03-28T06:54:55.18 0.3 undecidable manual P 292 5.2947 112 -0.42 71
IV.EMNR.HHZ. 2021-03-28T06:54:55.81 0.1 undecidable manual P 17 7.0929 106 -0.14 100
IV.ECPN.HHZ. 2021-03-28T06:54:54.46 0.6 undecidable manual S 228 1.8981 138 -0.98 38
IV.ECNE.HHN. 2021-03-28T06:54:54.60 0.6 undecidable manual S 356 1.0989 152 -0.69 43
IV.ECPN.HHZ. 2021-03-28T06:54:54.00 0.1 undecidable manual P 228 1.8981 138 -1.03 75
IV.ECNE.HHN. 2021-03-28T06:54:54.23 0.3 undecidable manual P 356 1.0989 152 -0.71 65
IV.EMFS.HHE. 2021-03-28T06:54:54.73 0.1 undecidable manual P 186 3.996 118 -0.63 89
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESAL.HHN. ML:2.4 0.0040739725 0.72 AML other m 2021-03-28T06:55:18.74
IV.ESAL.HHE. ML:2.5 0.0057265680000000005 0.7008 AML other m 2021-03-28T06:55:10.03
IV.EPIT.HHN. ML:2.9 0.0116 0.86 AML other m 2021-03-28T06:55:11.45
IV.EMPL.HHN. ML:2.9 0.007257818 0.8384 AML other m 2021-03-28T06:55:03.25
IV.EPIT.HHE. ML:2.7 0.006755 1.2 AML other m 2021-03-28T06:55:13.25
IV.EMPL.HHE. ML:2.8 0.0068239605 0.6592 AML other m 2021-03-28T06:55:07.69
IV.EMSG.HHE. ML:2.9 0.008404875000000001 0.6176 AML other m 2021-03-28T06:55:13.59
IV.ESCV.HHN. ML:2.5 0.003675 0.94 AML other m 2021-03-28T06:55:17.81
IV.EMSG.HHN. ML:2.8 0.007712142 0.6784 AML other m 2021-03-28T06:55:13.88
IV.ESCV.HHE. ML:2.2 0.0015337535 0.72 AML other m 2021-03-28T06:55:22.40
IV.EFIU.HHE. ML:2.1 0.0011860895 0.8608 AML other m 2021-03-28T06:55:11.10
IV.EFIU.HHN. ML:1.9 0.0006991979999999999 0.8576 AML other m 2021-03-28T06:55:09.47
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