Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 07-03-2023 and time 14:06:58 (Italy) in region 4 km S Giarratana (RG)

A magnitude ML 1.4 earthquake occured in region: 4 km S Giarratana (RG), on

  • 07-03-2023 13:06:58 (UTC)
  • 07-03-2023 14:06:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.0100, 14.7890 at 23 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
Giarratana RG 4 3048 3048
Chiaramonte Gulfi RG 8 8238 11286
Monterosso Almo RG 9 3032 14318
Ragusa RG 11 73313 87631
Palazzolo Acreide SR 12 8808 96439
Buscemi SR 12 1051 97490
Buccheri SR 14 1999 99489
Modica RG 17 54633 154122
Vizzini CT 17 6241 160363
Cassaro SR 18 821 161184
Comiso RG 18 30156 191340
Licodia Eubea CT 18 3081 194421
Ferla SR 18 2523 196944

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NE of Ragusa (73313 inhabitants)
17 Km N of Modica (54633 inhabitants)
23 Km E of Vittoria (63339 inhabitants)
45 Km W of Siracusa (122291 inhabitants)
48 Km E of Gela (75827 inhabitants)
61 Km SW of Catania (314555 inhabitants)
75 Km SW of Acireale (52622 inhabitants)
84 Km SE 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 1.4 2023-03-07
13:06:58		 37.0097 14.7893 23 2024-03-01
17:18:17		 Bollettino Sismico Italiano INGV 122197651
Reviewed
Rev100 		ML 1.5 2023-03-07
13:06:58		 37.0133 14.7952 22 2023-03-07
13:27:29		 Sala Sismica INGV-Roma 115069921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-07 13:06:58 ± 0.15
Latitude 37.0097 ± 0.0054
Longitude 14.7893 ± 0.0056
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 122197651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 580
Semi-minor axis of confidence ellipse (meter) 337
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 324
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 46
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.40110
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 115069921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-07 13:27:29

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 122197651
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-10-19 12:17:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2023-03-07T13:07:14.36 0.3 undecidable manual S 302 44.5221 110 0.7 60
IV.HPAC.HHE. 2023-03-07T13:07:13.11 1.0 undecidable manual S 147 40.0266 113 0.58 20
IV.HAGA.HHE. 2023-03-07T13:07:13.60 0.3 undecidable manual S 47 44.5221 110 -0.04 70
IV.HCRL.HHZ. 2023-03-07T13:07:12.00 0.6 undecidable manual S 35 37.1295 115 0.16 46
IV.HLNI.HHZ. 2023-03-07T13:07:11.90 0.6 undecidable manual S 11 38.3283 114 -0.22 45
IV.SSY.HHZ. 2023-03-07T13:07:10.50 0.6 undecidable manual S 57 30.0477 121 0.34 45
IV.CROCE.HHE. 2023-03-07T13:07:10.09 0.3 undecidable manual S 229 29.9478 121 -0.05 72
IV.HAVL.HHZ. 2023-03-07T13:07:10.10 0.6 undecidable manual S 101 29.9478 121 -0.05 48
IV.HVZN.HHZ. 2023-03-07T13:07:08.00 0.6 undecidable manual S 341 19.869 134 0.02 49
IV.HVIT.HHZ. 2023-03-07T13:07:08.30 0.6 undecidable manual S 266 23.754 128 -0.48 44
IV.HAGA.HHE. 2023-03-07T13:07:07.08 0.1 positive manual P 47 44.5221 110 -0.26 89
IV.RAFF.HHZ. 2023-03-07T13:07:07.84 0.1 undecidable manual P 302 44.5221 110 0.49 85
IV.HCRL.HHZ. 2023-03-07T13:07:06.30 0.1 positive manual P 35 37.1295 115 0 95
IV.HMDC.HHZ. 2023-03-07T13:07:06.00 0.1 undecidable manual S 186 5.6943 165 -0.01 100
IV.HPAC.HHE. 2023-03-07T13:07:06.64 0.1 negative manual P 147 40.0266 113 -0.06 95
IV.HLNI.HHZ. 2023-03-07T13:07:06.25 0.1 undecidable manual P 11 38.3283 114 -0.2 91
IV.SSY.HHZ. 2023-03-07T13:07:05.45 0.1 positive manual P 57 30.0477 121 0.12 94
IV.HAVL.HHZ. 2023-03-07T13:07:05.27 0.1 undecidable manual P 101 29.9478 121 -0.05 96
IV.CROCE.HHE. 2023-03-07T13:07:05.12 0.6 undecidable manual P 229 29.9478 121 -0.19 47
IV.HVZN.HHZ. 2023-03-07T13:07:04.02 0.1 positive manual P 341 19.869 134 -0.05 97
IV.HVIT.HHZ. 2023-03-07T13:07:04.35 0.1 positive manual P 266 23.754 128 -0.18 94
IV.HMDC.HHZ. 2023-03-07T13:07:02.83 0.1 negative manual P 186 5.6943 165 -0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HMDC.HHE. ML:0.9 0.000055283010000000007 0.0832 AML other m 2023-03-07T13:07:06.24
IV.HMDC.HHN. ML:1.6 0.0002635 0.1 AML other m 2023-03-07T13:07:06.18
IV.HVZN.HHN. ML:1.4 0.00012367944999999998 0.32 AML other m 2023-03-07T13:07:08.76
IV.HVIT.HHN. ML:1.4 0.0001132361 0.1408 AML other m 2023-03-07T13:07:08.79
IV.HVZN.HHE. ML:1.4 0.00012740575000000002 1.6992 AML other m 2023-03-07T13:07:08.05
IV.HVIT.HHE. ML:1.1 0.000060082145 1.8784 AML other m 2023-03-07T13:07:09.03
IV.HAVL.HHN. ML:1.7 0.0001894755 0.16 AML other m 2023-03-07T13:07:11.14
IV.SSY.HHN. ML:2.2 0.00055993235 0.096 AML other m 2023-03-07T13:07:10.82
IV.SSY.HHE. ML:1.9 0.00029184135 0.16 AML other m 2023-03-07T13:07:10.88
IV.HLNI.HHE. ML:1.2 0.00004845 0.14 AML other m 2023-03-07T13:07:12.17
IV.HCRL.HHN. ML:1.5 0.00009748896499999999 0.096 AML other m 2023-03-07T13:07:12.40
IV.HAVL.HHE. ML:1.5 0.00012917654 0.2752 AML other m 2023-03-07T13:07:12.77
IV.HLNI.HHN. ML:1.2 0.000044556105 0.1024 AML other m 2023-03-07T13:07:12.50
IV.HCRL.HHE. ML:1.4 0.000081668035 0.2048 AML other m 2023-03-07T13:07:14.01
IV.HMDC.HNN. ML:1.6 0.00024949645000000003 0.192 AML other m 2023-03-07T13:07:06.19
IV.HMDC.HNE. ML:1.3 0.000151594435 0.1408 AML other m 2023-03-07T13:07:06.25
IV.HVZN.HNN. ML:1.3 0.00010712561799999999 0.32 AML other m 2023-03-07T13:07:08.93
IV.HVZN.HNE. ML:1.4 0.00012490795 0.3072 AML other m 2023-03-07T13:07:09.06
IV.SSY.HNE. ML:1.7 0.00017896885000000002 0.1408 AML other m 2023-03-07T13:07:10.82
IV.SSY.HNN. ML:1.6 0.00013674184000000002 0.0832 AML other m 2023-03-07T13:07:10.78
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