Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 07-04-2022 and time 23:00:44 (Italy) in region 11 km W Ramacca (CT)

A magnitude ML 2.1 earthquake occured in region: 11 km W Ramacca (CT), on

  • 07-04-2022 21:00:44 (UTC)
  • 07-04-2022 23:00:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.3790, 14.5760 at 31 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
Ramacca CT 11 10894 10894
Raddusa CT 11 3178 14072
Aidone EN 12 4889 18961
Mirabella Imbaccari CT 13 4912 23873
Castel di Iudica CT 15 4625 28498
Palagonia CT 16 16608 45106
Mineo CT 16 5159 50265
Caltagirone CT 17 38686 88951
San Michele di Ganzaria CT 17 3245 92196
Piazza Armerina EN 19 21886 114082
Grammichele CT 19 13418 127500

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NE of Gela (75827 inhabitants)
47 Km E of Caltanissetta (63360 inhabitants)
47 Km W of Catania (314555 inhabitants)
48 Km N of Vittoria (63339 inhabitants)
52 Km N of Ragusa (73313 inhabitants)
58 Km W of Acireale (52622 inhabitants)
60 Km N of Modica (54633 inhabitants)
73 Km NW of Siracusa (122291 inhabitants)
88 Km E of Agrigento (59770 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 2022-04-07
21:00:44		 37.3788 14.5755 31 2022-07-08
12:33:49		 Bollettino Sismico Italiano INGV 103659401
Reviewed
Rev100 		ML 2.2 2022-04-07
21:00:44		 37.3938 14.5518 31 2022-04-07
21:11:54		 Sala Sismica INGV-Roma 102893361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-04-07 21:00:44 ± 0.2
Latitude 37.3788 ± 0.0063
Longitude 14.5755 ± 0.0079
Depth (km) 31 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 103659401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 769
Semi-minor axis of confidence ellipse (meter) 121
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 770.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 38
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) 0.19785
Epicentral distance of station farthest from the epicenter (degree) 0.78781
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 102893361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-04-07 21:11:54

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 103659401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-04-23 16:22:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AIO.HHZ. 2022-04-07T21:01:11.20 0.6 undecidable manual S 41 87.4458 105 0.23 47
IV.MUCR.HHE. 2022-04-07T21:01:09.40 0.6 undecidable manual S 19 78.1662 107 0.81 40
IV.ISPIC.EHZ. 2022-04-07T21:01:07.90 0.3 undecidable manual S 156 72.4719 109 0.76 63
IV.HAVL.HHZ. 2022-04-07T21:01:06.60 0.3 undecidable manual S 134 67.0773 110 0.83 62
IV.RESU.HHZ. 2022-04-07T21:01:03.30 0.6 undecidable manual S 303 54.501 115 0.63 44
IV.SSY.HHZ. 2022-04-07T21:01:02.60 0.3 undecidable manual S 119 50.3163 117 0.92 61
IV.HMDC.HHZ. 2022-04-07T21:01:01.90 0.3 undecidable manual S 158 50.0166 117 0.29 75
IV.ESML.HHZ. 2022-04-07T21:00:59.20 0.6 undecidable manual S 45 37.629 125 0.43 49
IV.AIO.HHZ. 2022-04-07T21:00:59.48 0.6 undecidable manual P 41 87.4458 105 -0.28 46
IV.HCRL.HHZ. 2022-04-07T21:00:59.90 0.3 undecidable manual S 105 41.7249 122 0.23 77
IV.HVIT.HHZ. 2022-04-07T21:00:59.90 0.3 undecidable manual S 186 43.1235 121 -0.09 78
IT.LNT.HGZ. 2022-04-07T21:00:59.10 0.3 undecidable manual S 105 38.9277 124 0.05 80
IV.PLLN.EHN. 2022-04-07T21:00:58.51 0.3 undecidable manual P 331 77.9664 107 0.16 73
IV.ACATE.HNE. 2022-04-07T21:00:58.90 0.6 undecidable manual S 190 39.9267 124 -0.37 49
IV.GALF.HHZ. 2022-04-07T21:00:58.00 0.6 undecidable manual S 359 36.8298 126 -0.59 47
IV.CSLB.HHZ. 2022-04-07T21:00:58.22 0.6 undecidable manual P 324 76.8675 107 0.03 50
IV.ISPIC.EHZ. 2022-04-07T21:00:57.58 0.6 undecidable manual P 156 72.4719 109 0.03 50
MN.VAE.HHZ. 2022-04-07T21:00:57.10 0.3 undecidable manual S 297 21.9669 142 1.39 48
IV.MUCR.HHE. 2022-04-07T21:00:57.49 0.6 undecidable manual P 19 78.1662 107 -0.89 37
IV.MSFR.HHZ. 2022-04-07T21:00:57.42 0.3 undecidable manual P 1 72.6717 108 -0.16 72
IV.EPZF.HHZ. 2022-04-07T21:00:56.28 0.6 undecidable manual P 27 55.2003 115 1.21 35
IV.RAFF.HHZ. 2022-04-07T21:00:56.50 0.3 undecidable manual S 227 25.5522 137 0.16 79
IV.HVZN.HHZ. 2022-04-07T21:00:56.30 0.6 undecidable manual S 151 25.4523 137 -0.02 54
IV.HAVL.HHZ. 2022-04-07T21:00:56.79 0.3 undecidable manual P 134 67.0773 110 0.03 76
IV.HLNI.HHZ. 2022-04-07T21:00:55.80 0.3 undecidable manual S 97 26.3514 136 -0.68 68
IV.RESU.HHZ. 2022-04-07T21:00:55.92 0.6 undecidable manual P 303 54.501 115 0.95 39
IV.HMDC.HHZ. 2022-04-07T21:00:54.04 0.3 undecidable manual P 158 50.0166 117 -0.32 73
IV.SSY.HHZ. 2022-04-07T21:00:54.48 0.3 undecidable manual P 119 50.3163 117 0.08 78
IV.ESML.HHZ. 2022-04-07T21:00:52.46 0.3 undecidable manual P 45 37.629 125 -0.26 76
IV.HCRL.HHZ. 2022-04-07T21:00:52.99 0.3 undecidable manual P 105 41.7249 122 -0.24 75
IV.ACATE.HNE. 2022-04-07T21:00:52.74 0.3 undecidable manual P 190 39.9267 124 -0.26 75
IV.GALF.HHZ. 2022-04-07T21:00:52.29 0.6 undecidable manual P 359 36.8298 126 -0.32 50
IT.LNT.HGZ. 2022-04-07T21:00:52.57 0.3 undecidable manual P 105 38.9277 124 -0.31 74
IV.HVIT.HHZ. 2022-04-07T21:00:52.99 0.3 undecidable manual P 186 43.1235 121 -0.43 72
IV.HVZN.HHZ. 2022-04-07T21:00:51.05 0.3 undecidable manual P 151 25.4523 137 -0.25 77
MN.VAE.HHZ. 2022-04-07T21:00:50.50 0.1 undecidable manual P 297 21.9669 142 -0.45 100
IV.HLNI.HHZ. 2022-04-07T21:00:50.89 0.1 undecidable manual P 97 26.3514 136 -0.5 97
IV.RAFF.HHZ. 2022-04-07T21:00:50.67 0.3 undecidable manual P 227 25.5522 137 -0.64 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HLNI.HHN. ML:0.0 0.00080529825 0.3072 AML other m 2022-04-07T21:00:56.17
IV.HLNI.HHE. ML:0.0 0.00058451595 0.1024 AML other m 2022-04-07T21:00:56.17
IV.HVZN.HHE. ML:0.0 0.0013365485999999999 0.2048 AML other m 2022-04-07T21:00:56.83
IV.RAFF.HHN. ML:0.0 0.00036288335 0.192 AML other m 2022-04-07T21:00:56.82
IV.HVZN.HNE. ML:0.0 0.00127489415 0.2048 AML other m 2022-04-07T21:00:56.83
IV.RAFF.HHE. ML:0.0 0.00057651545 0.2432 AML other m 2022-04-07T21:00:56.91
IV.HVZN.HHN. ML:0.0 0.0006691147500000001 0.2176 AML other m 2022-04-07T21:00:57.91
IV.HVZN.HNN. ML:0.0 0.0006256125000000001 0.2176 AML other m 2022-04-07T21:00:57.90
IV.GALF.HHE. ML:0.0 0.00028321455000000003 0.32 AML other m 2022-04-07T21:01:00.15
IV.HCRL.HHN. ML:0.0 0.00015494475 0.128 AML other m 2022-04-07T21:01:03.25
IV.GALF.HHN. ML:0.0 0.00046049135 0.5888 AML other m 2022-04-07T21:01:01.04
IV.HCRL.HHE. ML:0.0 0.0001724407 0.1408 AML other m 2022-04-07T21:01:01.70
IV.SSY.HNE. ML:2.2 0.0003275 1.36 AML other m 2022-04-07T21:01:04.82
IV.SSY.HNN. ML:2.2 0.0003005 1.38 AML other m 2022-04-07T21:01:04.82
IV.HAVL.HHE. ML:2.2 0.0002595 0.32 AML other m 2022-04-07T21:01:08.04
IV.HAVL.HHN. ML:2.4 0.00039549999999999996 0.32 AML other m 2022-04-07T21:01:08.20
MN.VAE.HHN. ML:0.0 0.00011817963000000001 1.8176 AML other m 2022-04-07T21:00:52.42
IV.ESML.HHN. ML:1.8 0.000164604 0.192 AML other m 2022-04-07T21:00:59.55
IV.ESML.HNE. ML:1.6 0.000099525845 0.2432 AML other m 2022-04-07T21:00:59.33
IV.ESML.HNN. ML:1.9 0.00020950855 2.5472 AML other m 2022-04-07T21:01:05.54
IV.ESML.HHE. ML:1.6 0.00011970085 0.1408 AML other m 2022-04-07T21:00:59.63
IV.HVIT.HHE. ML:1.7 0.00013291385 1.7408 AML other m 2022-04-07T21:01:15.30
IV.HVIT.HHN. ML:1.8 0.00014642814999999998 3.072 AML other m 2022-04-07T21:01:16.03
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