Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 06-04-2021 and time 16:34:10 (Italy) in region 1 km SW Alcara li Fusi (ME)

A magnitude ML 2.1 earthquake occured in region: 1 km SW Alcara li Fusi (ME), on

  • 06-04-2021 14:34:10 (UTC)
  • 06-04-2021 16:34:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.0140, 14.6900 at 7 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
Alcara li Fusi ME 1 1980 1980
Militello Rosmarino ME 4 1324 3304
Longi ME 6 1473 4777
San Marco d'Alunzio ME 7 1996 6773
Galati Mamertino ME 8 2627 9400
Sant'Agata di Militello ME 8 12624 22024
Frazzanò ME 8 711 22735
San Fratello ME 8 3707 26442
Torrenova ME 9 4386 30828
Mirto ME 10 974 31802
San Salvatore di Fitalia ME 10 1319 33121
Acquedolci ME 10 5744 38865
Capri Leone ME 11 4515 43380
Tortorici ME 12 6435 49815
Castell'Umberto ME 13 3128 52943
Naso ME 15 3813 56756
Sinagra ME 16 2705 59461
Ficarra ME 16 1469 60930
Capo d'Orlando ME 17 13254 74184
Ucria ME 17 1058 75242
San Teodoro ME 18 1403 76645
Cesarò ME 19 2439 79084
Floresta ME 20 485 79569
Maniace CT 20 3765 83334

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km NW of Acireale (52622 inhabitants)
67 Km NW of Catania (314555 inhabitants)
78 Km W of Messina (238439 inhabitants)
80 Km NE of Caltanissetta (63360 inhabitants)
84 Km W of Reggio di Calabria (183035 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 2.1 2021-04-06
14:34:10		 38.0137 14.6902 7 2021-07-12
16:55:07		 Bollettino Sismico Italiano INGV 89358671
Reviewed
Rev100 		ML 2.0 2021-04-06
14:34:10		 38.0007 14.6987 8 2021-04-06
14:48:18		 Sala Sismica INGV-Roma 88837801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-06 14:34:10 ± 0.1
Latitude 38.0137 ± 0.0072
Longitude 14.6902 ± 0.0068
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89358671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 544
Semi-minor axis of confidence ellipse (meter) 540
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 182
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.08004
Epicentral distance of station farthest from the epicenter (degree) 0.67989
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:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 89358671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-29 16:04:55

ML:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 88837801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-06 14:48:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IVUG.HHZ. 2021-04-06T14:34:27.89 0.6 undecidable manual S 31 49.617 50 0.75 39
IV.PLLN.EHZ. 2021-04-06T14:34:27.33 0.3 undecidable manual S 267 47.9187 50 0.66 62
IV.AIO.HHZ. 2021-04-06T14:34:25.38 0.6 undecidable manual S 96 47.7189 50 -1.24 31
IV.HLNI.HHZ. 2021-04-06T14:34:24.41 0.3 undecidable manual P 168 75.4689 50 0.32 65
IV.IVUG.HHZ. 2021-04-06T14:34:20.35 0.3 undecidable manual P 31 49.617 50 0.25 69
IV.ESAL.HHZ. 2021-04-06T14:34:20.40 0.3 undecidable manual P 126 48.3183 50 0.49 66
IV.PETRA.HHZ. 2021-04-06T14:34:20.46 0.3 undecidable manual P 249 54.2013 50 -0.34 67
IV.CSLB.HHZ. 2021-04-06T14:34:20.40 0.3 undecidable manual P 261 55.8996 50 -0.68 60
IV.IVGP.HHZ. 2021-04-06T14:34:20.06 0.3 undecidable manual P 29 48.618 50 0.11 71
IV.EMPL.HHZ. 2021-04-06T14:34:19.66 0.3 undecidable manual P 146 44.5221 50 0.35 68
IV.PLLN.EHZ. 2021-04-06T14:34:19.20 0.3 undecidable manual P 267 47.9187 50 -0.63 62
IV.AIO.HHZ. 2021-04-06T14:34:19.23 0.3 undecidable manual P 96 47.7189 50 -0.57 64
IV.ESPC.HHZ. 2021-04-06T14:34:19.52 0.3 undecidable manual P 140 46.3203 50 -0.07 72
IV.ESVO.HHZ. 2021-04-06T14:34:18.27 0.3 undecidable manual P 140 34.9428 101 0.65 63
IV.EMCN.HHZ. 2021-04-06T14:34:18.87 0.3 undecidable manual P 129 38.9277 100 0.47 67
IV.EMNR.HHZ. 2021-04-06T14:34:18.70 0.3 undecidable manual P 127 36.6411 101 0.74 61
IV.EPIT.HHZ. 2021-04-06T14:34:18.65 0.3 undecidable manual P 125 39.1275 100 0.19 71
IV.GALF.HHZ. 2021-04-06T14:34:17.39 0.3 undecidable manual P 198 35.3424 101 -0.31 70
IV.NOV.HNZ. 2021-04-06T14:34:17.51 0.3 undecidable manual P 88 39.0276 100 -0.92 56
IV.EMSG.HHZ. 2021-04-06T14:34:16.59 0.3 undecidable manual P 133 31.2465 102 -0.3 70
IV.ESCV.HHE. 2021-04-06T14:34:16.99 0.3 undecidable manual P 160 31.5462 102 0.03 75
IV.MUCR.HHZ. 2021-04-06T14:34:16.42 0.3 undecidable manual S 79 16.3725 113 -0.23 73
IV.EPZF.HHZ. 2021-04-06T14:34:15.85 0.3 undecidable manual P 145 25.6521 105 0.05 75
IV.MCPD.HHZ. 2021-04-06T14:34:15.80 0.3 undecidable manual S 17 12.2766 119 0.43 71
IV.MSFR.HHZ. 2021-04-06T14:34:14.52 0.3 undecidable manual S 285 8.88 127 0.13 76
IV.MCPD.HHZ. 2021-04-06T14:34:13.32 0.3 undecidable manual P 17 12.2766 119 0.01 77
IV.MUCR.HHZ. 2021-04-06T14:34:13.65 0.1 undecidable manual P 79 16.3725 113 -0.4 94
IV.MSFR.HHZ. 2021-04-06T14:34:12.55 0.1 undecidable manual P 285 8.88 127 -0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSFR.HHE. ML:1.8 0.00114610145 0.224 AML other m 2021-04-06T14:34:14.61
IV.MSFR.HHN. ML:1.8 0.0009812851 0.1984 AML other m 2021-04-06T14:34:14.76
IV.MCPD.HHN. ML:2.3 0.0025858445000000005 0.2432 AML other m 2021-04-06T14:34:16.44
IV.MUCR.HHE. ML:2.4 0.00247368945 0.16 AML other m 2021-04-06T14:34:16.79
IV.MUCR.HHN. ML:2.5 0.0034179005 0.2816 AML other m 2021-04-06T14:34:16.77
IV.AIO.HHN. ML:2.0 0.000275 1.5 AML other m 2021-04-06T14:34:27.03
IV.AIO.HHE. ML:2.0 0.00029542705000000003 0.3648 AML other m 2021-04-06T14:34:27.46
IV.GALF.HHN. ML:2.6 0.001663971 0.3584 AML other m 2021-04-06T14:34:28.90
IV.GALF.HNE. ML:1.8 0.00023419895000000002 0.512 AML other m 2021-04-06T14:34:28.91
IV.GALF.HHE. ML:2.6 0.0015195965 0.6208 AML other m 2021-04-06T14:34:30.37
IV.PLLN.EHN. ML:2.4 0.0007184991000000001 0.4032 AML other m 2021-04-06T14:34:30.91
IV.GALF.HNN. ML:1.8 0.00024003195 0.576 AML other m 2021-04-06T14:34:31.23
IV.CSLB.HHE. ML:1.6 0.00010221176500000001 0.416 AML other m 2021-04-06T14:34:31.53
IV.PLLN.EHE. ML:2.4 0.0006925565 0.48 AML other m 2021-04-06T14:34:32.50
IV.CSLB.HHN. ML:1.7 0.000115049495 0.3648 AML other m 2021-04-06T14:34:33.68
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