Earthquake with magnitude of ML 1.8 on date 09-08-2023 and time 05:08:15 (Italy) in region 6 km S Marianopoli (CL)

A magnitude ML 1.8 earthquake occured in region: 6 km S Marianopoli (CL), on

  • 09-08-2023 03:08:15 (UTC)
  • 09-08-2023 05:08:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.5430, 13.9190 at 34 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Marianopoli CL 6 1906 1906
San Cataldo CL 9 23253 25159
Serradifalco CL 10 6091 31250
Santa Caterina Villarmosa CL 11 5388 36638
Montedoro CL 13 1631 38269
Caltanissetta CL 14 63360 101629
Villalba CL 14 1633 103262
Bompensiere CL 14 556 103818
Mussomeli CL 15 10780 114598
Sutera CL 17 1410 116008
Vallelunga Pratameno CL 17 3461 119469
Milena CL 18 3018 122487
Resuttano CL 18 2038 124525
Campofranco CL 19 3100 127625
Acquaviva Platani CL 20 948 128573

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km W of Caltanissetta (63360 inhabitants)
39 Km NE of Agrigento (59770 inhabitants)
61 Km NW of Gela (75827 inhabitants)
70 Km SE of Bagheria (55387 inhabitants)
80 Km SE of Palermo (674435 inhabitants)
86 Km NW of Vittoria (63339 inhabitants)
99 Km NW of Ragusa (73313 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
Reviewed
Rev100
ML 1.8 2023-08-09
03:08:15
37.5427 13.9192 34 2023-08-09
03:36:01
Sala Sismica INGV-Roma 119957421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-09 03:08:15 ± 0.66
Latitude 37.5427 ± 0.0198
Longitude 13.9192 ± 0.0363
Depth (km) 34 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119957421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2768
Semi-minor axis of confidence ellipse (meter) 1997
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 115
Circular confidence region, given by single value of horizontal uncertainty (meter) 2770.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.52
Epicentral distance of station closest to the epicenter (degree) 0.10972
Epicentral distance of station farthest from the epicenter (degree) 0.59985
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 119957421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-09 03:36:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIB.HHZ. 2023-08-09T03:08:35.28 0.6 undecidable manual S 11 50.5161 119 1.74 23
IV.PLLN.EHZ. 2023-08-09T03:08:34.12 1.0 undecidable manual S 21 53.6019 118 -0.15 25
IV.CSLB.HHZ. 2023-08-09T03:08:32.83 0.6 undecidable manual S 15 45.4212 122 0.46 46
IV.CORL.HHZ. 2023-08-09T03:08:28.57 0.6 undecidable manual P 306 66.5778 112 0.22 48
IV.ALJA.HHE. 2023-08-09T03:08:28.42 0.6 undecidable manual S 328 27.0507 138 -0.18 51
IV.PLLN.EHZ. 2023-08-09T03:08:28.19 0.6 negative manual P 21 53.6019 118 1.65 26
IV.MARIO.HHE. 2023-08-09T03:08:27.22 0.3 undecidable manual P 317 62.493 114 -0.55 65
IV.CMDO.HHZ. 2023-08-09T03:08:26.51 1.0 undecidable manual S 224 12.1767 158 0.04 27
IV.RESU.HHE. 2023-08-09T03:08:26.33 0.6 undecidable manual S 46 16.7721 151 -0.66 47
IV.GIB.HHZ. 2023-08-09T03:08:25.77 1.0 undecidable manual P 11 50.5161 119 -0.34 24
IV.CIMI.HHZ. 2023-08-09T03:08:25.77 0.1 undecidable manual P 321 48.3183 120 -0.05 100
IV.CSLB.HHZ. 2023-08-09T03:08:24.60 0.6 undecidable manual P 15 45.4212 122 -0.84 40
IV.FAVA.HHE. 2023-08-09T03:08:24.32 0.3 undecidable manual P 224 32.9448 132 0.42 73
IV.MCT.HHE. 2023-08-09T03:08:23.16 0.1 undecidable manual P 287 28.6491 136 -0.26 99
IV.CMDO.HHZ. 2023-08-09T03:08:22.87 0.1 undecidable manual P 224 12.1767 158 0.83 87
IV.RESU.HHE. 2023-08-09T03:08:21.58 0.1 undecidable manual P 46 16.7721 151 -0.75 88
IV.ALJA.HHE. 2023-08-09T03:08:20.46 3.0 undecidable manual P 328 27.0507 138 -2.8 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HHN. ML:1.3 0.000048492755 0.32 AML other m 2023-08-09T03:08:33.68
IV.CSLB.HNE. ML:1.5 0.0000713 1.58 AML other m 2023-08-09T03:08:33.84
IV.CSLB.HHE. ML:1.5 0.00007395000000000001 1.58 AML other m 2023-08-09T03:08:33.85
IV.CMDO.HHE. ML:1.5 0.000124185245 0.72 AML other m 2023-08-09T03:08:32.36
IV.CMDO.HNE. ML:1.5 0.000125308945 0.2896 AML other m 2023-08-09T03:08:33.99
IV.CMDO.HHN. ML:1.7 0.00020385309 0.48 AML other m 2023-08-09T03:08:34.17
IV.CMDO.HNN. ML:1.7 0.000198094395 0.4816 AML other m 2023-08-09T03:08:34.18
IV.CSLB.HNN. ML:1.5 0.00007223064500000002 0.4592 AML other m 2023-08-09T03:08:33.66
IV.CIMI.HHN. ML:2.4 0.000508 0.62 AML other m 2023-08-09T03:08:36.37
IV.CIMI.HNN. ML:2.4 0.000516 0.62 AML other m 2023-08-09T03:08:36.37
IV.GIB.HHE. ML:1.9 0.00015167835000000002 0.6208 AML other m 2023-08-09T03:08:38.39
IV.CIMI.HNE. ML:2.3 0.00045850000000000003 1.38 AML other m 2023-08-09T03:08:36.69
IV.CIMI.HHE. ML:2.3 0.000431 1.36 AML other m 2023-08-09T03:08:36.01
IV.GIB.HHN. ML:1.8 0.00014700000000000002 0.42 AML other m 2023-08-09T03:08:37.64
IV.CORL.HNN. ML:1.8 0.00009429999999999999 1.5 AML other m 2023-08-09T03:08:46.98
IV.CORL.HNE. ML:1.8 0.00009779999999999999 0.54 AML other m 2023-08-09T03:08:51.36
IV.CORL.HHE. ML:1.8 0.00009520000000000001 0.62 AML other m 2023-08-09T03:08:51.37
IV.CORL.HHN. ML:1.7 0.00007974569000000001 0.7792 AML other m 2023-08-09T03:08:46.21
IV.PLLN.EHE. ML:1.8 0.0001156764 1.0608 AML other m 2023-08-09T03:08:47.76
IV.PLLN.EHN. ML:2.0 0.00018356364999999998 0.5808 AML other m 2023-08-09T03:08:40.78
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