Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 16-04-2023 and time 00:06:36 (Italy) in region 5 km SW Floresta (ME)

A magnitude ML 1.9 earthquake occured in region: 5 km SW Floresta (ME), on

  • 15-04-2023 22:06:36 (UTC)
  • 16-04-2023 00:06:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9500, 14.8830 at 36 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
Floresta ME 5 485 485
Santa Domenica Vittoria ME 8 980 1465
Randazzo CT 10 10900 12365
Tortorici ME 10 6435 18800
Ucria ME 11 1058 19858
Roccella Valdemone ME 11 666 20524
Maniace CT 12 3765 24289
Raccuja ME 12 1041 25330
Maletto CT 13 3920 29250
Galati Mamertino ME 14 2627 31877
San Piero Patti ME 14 2915 34792
Montalbano Elicona ME 14 2287 37079
Longi ME 14 1473 38552
Sinagra ME 15 2705 41257
Malvagna ME 16 733 41990
Moio Alcantara ME 16 717 42707
San Salvatore di Fitalia ME 16 1319 44026
Castell'Umberto ME 16 3128 47154
Librizzi ME 18 1660 48814
Alcara li Fusi ME 18 1980 50794
Sant'Angelo di Brolo ME 18 3090 53884
Frazzanò ME 18 711 54595
Bronte CT 19 19172 73767
Ficarra ME 19 1469 75236
Mirto ME 19 974 76210
Cesarò ME 19 2439 78649
San Teodoro ME 20 1403 80052

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NW of Acireale (52622 inhabitants)
53 Km NW of Catania (314555 inhabitants)
65 Km W of Messina (238439 inhabitants)
69 Km W of Reggio di Calabria (183035 inhabitants)
88 Km NE of Caltanissetta (63360 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 2023-04-15
22:06:36		 37.9502 14.8828 36 2024-03-01
17:18:04		 Bollettino Sismico Italiano INGV 116490141
Reviewed
Rev100 		ML 1.9 2023-04-15
22:06:37		 37.974 14.8922 34 2023-04-15
22:25:00		 Sala Sismica INGV-Roma 116421111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-15 22:06:36 ± 0.16
Latitude 37.9502 ± 0.0072
Longitude 14.8828 ± 0.0091
Depth (km) 36 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116490141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 825
Semi-minor axis of confidence ellipse (meter) 495
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 116
Circular confidence region, given by single value of horizontal uncertainty (meter) 830.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.09263
Epicentral distance of station farthest from the epicenter (degree) 0.83547
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 31
Type of magnitude ML
Reference to an origin 116490141
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-23 16:38:24

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 27
Type of magnitude ML
Reference to an origin 116421111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-15 22:25:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HLNI.HHZ. 2023-04-15T22:06:57.57 0.6 undecidable manual S 181 66.7776 114 -1.06 33
IV.MPNC.HHE. 2023-04-15T22:06:54.25 0.6 undecidable manual S 62 46.5201 124 0.37 44
IV.RAFF.HHZ. 2023-04-15T22:06:53.08 0.3 undecidable manual P 210 92.7405 54 0.31 61
IV.SSY.HHZ. 2023-04-15T22:06:51.57 0.3 undecidable manual P 169 89.5437 54 -0.79 52
IV.EPMN.HHZ. 2023-04-15T22:06:50.63 0.6 undecidable manual S 119 29.5482 138 0.19 47
IV.MSFR.HHE. 2023-04-15T22:06:50.18 0.6 undecidable manual S 290 27.1506 140 0.16 48
IV.AIO.HHZ. 2023-04-15T22:06:50.16 0.6 undecidable manual S 86 30.747 137 -0.5 44
IV.MCPD.HHZ. 2023-04-15T22:06:49.54 0.6 undecidable manual S 325 23.0547 145 0.18 48
IV.ECTS.HHZ. 2023-04-15T22:06:49.42 0.6 undecidable manual S 110 22.1556 146 0.19 47
IV.ESCV.HHZ. 2023-04-15T22:06:49.59 0.6 undecidable manual S 195 23.2545 145 0.19 47
IV.EPIT.HHZ. 2023-04-15T22:06:49.21 0.6 undecidable manual S 135 21.6672 147 0.06 49
IV.MSRU.HHZ. 2023-04-15T22:06:49.76 0.3 undecidable manual P 57 64.7907 115 0.6 60
IV.EPZF.HHZ. 2023-04-15T22:06:48.64 0.6 undecidable manual S 189 14.1747 157 0.43 45
IV.EMSG.HHZ. 2023-04-15T22:06:48.53 0.6 undecidable manual S 158 15.4734 155 0.18 48
IV.HLNI.HHZ. 2023-04-15T22:06:48.23 0.3 undecidable manual P 181 66.7776 114 -1.21 45
IV.IVPL.HHZ. 2023-04-15T22:06:47.12 0.3 undecidable manual P 10 48.0186 123 0.22 68
IV.LIBRI.HHE. 2023-04-15T22:06:47.59 0.3 undecidable manual S 15 15.3735 155 -0.74 61
IV.MPNC.HHE. 2023-04-15T22:06:47.05 0.3 undecidable manual P 62 46.5201 124 0.35 66
IV.MUCR.HHZ. 2023-04-15T22:06:47.07 0.3 undecidable manual S 356 10.2786 163 -0.78 61
IV.EPOZ.HHZ. 2023-04-15T22:06:46.43 0.3 undecidable manual P 139 40.8258 128 0.43 66
IV.GALF.HHZ. 2023-04-15T22:06:46.15 0.3 undecidable manual P 226 38.4282 130 0.45 66
IV.EVRN.HHZ. 2023-04-15T22:06:45.56 0.3 undecidable manual P 143 36.4413 131 0.09 71
IV.ESML.HHZ. 2023-04-15T22:06:45.86 0.3 undecidable manual P 180 36.8298 131 0.34 67
IV.AIO.HHZ. 2023-04-15T22:06:44.63 0.1 undecidable manual P 86 30.747 137 -0.2 93
IV.MCPD.HHZ. 2023-04-15T22:06:44.05 0.1 undecidable manual P 325 23.0547 145 -0.04 97
IV.MSFR.HHE. 2023-04-15T22:06:44.60 0.1 undecidable manual P 290 27.1506 140 0.14 96
IV.ECZM.HHZ. 2023-04-15T22:06:44.61 0.3 undecidable manual P 176 24.3534 143 0.41 68
IV.EPMN.HHZ. 2023-04-15T22:06:44.51 0.1 undecidable manual P 119 29.5482 138 -0.2 94
IV.EPIT.HHZ. 2023-04-15T22:06:44.13 0.1 undecidable manual P 135 21.6672 147 0.17 96
IV.ECTS.HHZ. 2023-04-15T22:06:43.75 0.1 undecidable manual P 110 22.1556 146 -0.26 94
IV.EMSG.HHZ. 2023-04-15T22:06:43.64 0.1 undecidable manual P 158 15.4734 155 0.14 97
IV.LIBRI.HHE. 2023-04-15T22:06:43.29 0.1 undecidable manual P 15 15.3735 155 -0.2 96
IV.EMNR.HHE. 2023-04-15T22:06:43.99 0.1 undecidable manual P 140 19.3695 150 0.21 95
IV.EPZF.HHZ. 2023-04-15T22:06:43.40 0.1 undecidable manual P 189 14.1747 157 -0.02 100
IV.ESCV.HHZ. 2023-04-15T22:06:43.98 0.3 undecidable manual P 195 23.2545 145 -0.13 72
IV.MUCR.HHZ. 2023-04-15T22:06:42.96 0.1 undecidable manual P 356 10.2786 163 -0.26 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MUCR.HHN. ML:2.5 0.0013475000000000002 0.36 AML other m 2023-04-15T22:06:48.36
IV.EMSG.HHE. ML:2.1 0.00046350000000000004 0.38 AML other m 2023-04-15T22:06:48.67
IV.EPZF.HNE. ML:2.5 0.0011625000000000001 0.32 AML other m 2023-04-15T22:06:49.00
IV.EPZF.HHE. ML:2.5 0.001325 0.34 AML other m 2023-04-15T22:06:49.01
IV.EPZF.HNN. ML:2.5 0.001165 0.76 AML other m 2023-04-15T22:06:49.34
IV.EPZF.HHN. ML:2.5 0.0011841315 0.3712 AML other m 2023-04-15T22:06:49.91
IV.MUCR.HHE. ML:1.8 0.0002763222 0.5376 AML other m 2023-04-15T22:06:49.73
IV.EMSG.HHN. ML:2.2 0.0005845000000000001 1.74 AML other m 2023-04-15T22:06:49.04
IV.MCPD.HHN. ML:1.2 0.000051244895 0.2944 AML other m 2023-04-15T22:06:50.77
IV.ECTS.HHE. ML:1.5 0.00010761484500000002 0.32 AML other m 2023-04-15T22:06:50.85
IV.EPMN.HHN. ML:1.9 0.00023733779999999998 1.7056 AML other m 2023-04-15T22:06:50.96
IV.MCPD.HHE. ML:1.0 0.00003663996 0.448 AML other m 2023-04-15T22:06:51.34
IV.EPMN.HHE. ML:1.9 0.00022341130000000001 0.2176 AML other m 2023-04-15T22:06:51.42
IV.ECTS.HHN. ML:1.8 0.00018657265 0.256 AML other m 2023-04-15T22:06:51.68
IV.AIO.HHN. ML:1.7 0.0001545 0.3 AML other m 2023-04-15T22:06:52.53
IV.AIO.HHE. ML:1.7 0.00013010885 0.2816 AML other m 2023-04-15T22:06:52.77
IV.EVRN.HHN. ML:2.2 0.0003970428500000001 0.1536 AML other m 2023-04-15T22:06:53.46
IV.ESML.HHN. ML:1.8 0.00015354030000000002 0.4224 AML other m 2023-04-15T22:06:54.04
IV.GALF.HHE. ML:1.9 0.00018796515 0.4992 AML other m 2023-04-15T22:06:55.36
IV.EVRN.HNE. ML:2.3 0.0005172737000000001 0.4608 AML other m 2023-04-15T22:06:55.71
IV.ESML.HNN. ML:1.7 0.000128500945 0.1664 AML other m 2023-04-15T22:06:56.31
IV.EPOZ.HHN. ML:1.9 0.00018370385 0.4352 AML other m 2023-04-15T22:06:56.33
IV.ESML.HHE. ML:1.8 0.00017698965 0.256 AML other m 2023-04-15T22:06:57.89
IV.EPOZ.HHE. ML:2.0 0.00022698245 0.3968 AML other m 2023-04-15T22:06:58.53
IV.GALF.HHN. ML:1.8 0.00014260544999999998 0.8064 AML other m 2023-04-15T22:07:00.56
IV.MSRU.HNE. ML:2.0 0.0001680975 0.3968 AML other m 2023-04-15T22:07:00.77
IV.MSRU.HHN. ML:1.8 0.00009990181000000001 0.3328 AML other m 2023-04-15T22:07:01.06
IV.MSRU.HHE. ML:2.0 0.00016189864999999998 0.32 AML other m 2023-04-15T22:07:01.75
IV.MSRU.HNN. ML:1.7 0.00008563306 0.256 AML other m 2023-04-15T22:07:03.57
IV.SSY.HHE. ML:1.7 0.000052720325 0.1536 AML other m 2023-04-15T22:07:07.90
IV.SSY.HHN. ML:2.0 0.00009865355 0.2816 AML other m 2023-04-15T22:07:13.93
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