Earthquake with magnitude of ML 1.5 on date 04-07-2022 and time 21:53:34 (UTC) in region 4 km E Piazza Armerina (EN)

A magnitude ML 1.5 earthquake occured in region: 4 km E Piazza Armerina (EN), on

  • 04-07-2022 21:53:34 (UTC)
  • 04-07-2022 23:53:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.3840, 14.4080 at 35 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Piazza Armerina EN 4 21886 21886
Aidone EN 5 4889 26775
Mirabella Imbaccari CT 7 4912 31687
San Cono CT 11 2697 34384
San Michele di Ganzaria CT 12 3245 37629
Valguarnera Caropepe EN 13 7866 45495
Raddusa CT 15 3178 48673
Barrafranca EN 18 13380 62053
Caltagirone CT 19 38686 100739
Mazzarino CL 19 12145 112884

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Caltanissetta (63360 inhabitants)
38 Km NE of Gela (75827 inhabitants)
50 Km N of Vittoria (63339 inhabitants)
58 Km NW of Ragusa (73313 inhabitants)
61 Km W of Catania (314555 inhabitants)
66 Km NW of Modica (54633 inhabitants)
72 Km W of Acireale (52622 inhabitants)
73 Km E of Agrigento (59770 inhabitants)
86 Km W of Siracusa (122291 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 1.5 2022-07-04
21:53:34
37.3843 14.4083 35 2023-01-31
19:03:57
Bollettino Sismico Italiano INGV 113256081
Reviewed
Rev100
ML 1.5 2022-07-04
21:53:35
37.3815 14.3955 29 2022-07-04
21:58:54
Sala Sismica INGV-Roma 106815771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-07-04 21:53:34 ± 0.19
Latitude 37.3843 ± 0.0117
Longitude 14.4083 ± 0.0113
Depth (km) 35 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 113256081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1230
Semi-minor axis of confidence ellipse (meter) 770
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 1
Circular confidence region, given by single value of horizontal uncertainty (meter) 1230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.70956
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 113256081
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-01-02 14:27:55

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 106815771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-07-04 21:58:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.CGL1.HHZ. 2022-07-04T21:55:19.67 3.0 undecidable manual Sn -2.35 0
OT.CGL1.HHZ. 2022-07-04T21:54:50.50 3.0 undecidable manual Pg 15.19 0
IV.SPS2.HHZ. 2022-07-04T21:54:21.42 3.0 undecidable manual Pg 8.45 0
IV.MSRU.HHZ. 2022-07-04T21:54:15.17 3.0 undecidable manual S 2.25 0
IV.IFIL.HHZ. 2022-07-04T21:54:12.34 3.0 undecidable manual S 0.17 0
IV.HAVL.HHZ. 2022-07-04T21:53:59.99 0.6 undecidable manual S 127 78.7656 110 0.62 41
IV.SSY.HHZ. 2022-07-04T21:53:56.42 0.6 undecidable manual S 113 63.8916 114 0.73 40
IV.HCRL.HHZ. 2022-07-04T21:53:53.88 0.6 undecidable manual S 101 56.1993 118 0.04 49
IV.HVIT.HHZ. 2022-07-04T21:53:51.25 0.6 undecidable manual S 167 44.622 124 0.07 50
IV.HLNI.HHZ. 2022-07-04T21:53:50.02 0.6 undecidable manual S 95 41.0256 126 -0.38 46
IV.HVZN.HHZ. 2022-07-04T21:53:49.60 0.6 undecidable manual S 130 35.4423 131 0.36 48
IV.HAVL.HHZ. 2022-07-04T21:53:48.79 0.3 undecidable manual P 127 78.7656 110 -0.19 67
IV.SSY.HHZ. 2022-07-04T21:53:46.80 0.3 undecidable manual P 113 63.8916 114 -0.06 71
IV.RAFF.HHZ. 2022-07-04T21:53:46.73 0.6 undecidable manual S 193 18.3705 150 0.41 48
IV.HCRL.HHZ. 2022-07-04T21:53:45.67 0.3 undecidable manual P 101 56.1993 118 -0.11 71
IV.CLTA.HHN. 2022-07-04T21:53:44.55 0.3 undecidable manual P 238 46.7199 123 0.02 74
IV.RESU.HHZ. 2022-07-04T21:53:44.59 0.3 undecidable manual P 313 42.5241 125 0.61 64
IV.HVZN.HHZ. 2022-07-04T21:53:43.08 0.1 positive manual P 130 35.4423 131 -0.05 100
IV.HVIT.HHZ. 2022-07-04T21:53:43.94 0.3 undecidable manual P 167 44.622 124 -0.31 70
IV.HLNI.HHZ. 2022-07-04T21:53:43.39 0.1 positive manual P 95 41.0256 126 -0.41 92
IV.GALF.HHZ. 2022-07-04T21:53:43.76 0.3 undecidable manual P 21 38.7279 128 0.23 72
IV.RAFF.HHZ. 2022-07-04T21:53:41.02 0.1 negative manual P 193 18.3705 150 -0.41 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HVZN.HNE. ML:1.6 0.00010155 0.7 AML other m 2022-07-04T21:53:53.56
IV.HVZN.HNN. ML:2.3 0.0005925 0.94 AML other m 2022-07-04T21:53:57.47
IV.HAVL.HHN. ML:1.4 0.0000283 0.76 AML other m 2022-07-04T21:54:01.56
IV.HAVL.HHE. ML:1.3 0.000026349999999999997 0.92 AML other m 2022-07-04T21:54:02.55
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