Earthquake with magnitude of ML 1.8 on date 19-04-2023 and time 23:34:13 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 1.8 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 19-04-2023 23:34:13 (UTC)
  • 20-04-2023 01:34:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.5840, 13.4000 at 10 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km N of Palermo (674435 inhabitants)
57 Km N of Bagheria (55387 inhabitants)
100 Km NE of Trapani (68759 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 1.8 2023-04-19
23:34:13
38.5845 13.3998 10 2024-03-01
17:18:12
Bollettino Sismico Italiano INGV 118939721
Reviewed
Rev100
ML 1.8 2023-04-19
23:34:14
38.568 13.4035 7 2023-04-19
23:47:07
Sala Sismica INGV-Roma 116534211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-19 23:34:13 ± 0.16
Latitude 38.5845 ± 0.0099
Longitude 13.3998 ± 0.0115
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118939721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1160
Semi-minor axis of confidence ellipse (meter) 1000
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 33
Circular confidence region, given by single value of horizontal uncertainty (meter) 1160.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.21224
Epicentral distance of station farthest from the epicenter (degree) 1.74738
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 116534211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-19 23:47:07

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 118939721
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-17 17:21:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HVZN.HHZ. 2023-04-19T23:34:44.58 0.3 undecidable manual P 143 193.9614 38 -0.29 59
IV.HLNI.HHZ. 2023-04-19T23:34:43.25 0.3 undecidable manual P 136 188.0673 38 -0.89 50
IV.RAFF.HHZ. 2023-04-19T23:34:42.62 0.3 undecidable manual P 151 172.9935 50 0.45 64
IV.CORL.HHE. 2023-04-19T23:34:38.38 0.6 undecidable manual S 186 77.0673 50 1.2 40
IV.MBFT.HHZ. 2023-04-19T23:34:38.27 0.6 undecidable manual S 209 80.7636 50 0.09 59
IV.MCPD.HHE. 2023-04-19T23:34:34.66 0.3 undecidable manual P 114 126.7731 50 -0.39 76
IV.MSFR.HHE. 2023-04-19T23:34:33.74 0.3 undecidable manual P 120 120.3906 50 -0.32 78
IV.IFIL.HHZ. 2023-04-19T23:34:31.40 0.3 undecidable manual P 91 101.9202 50 0.17 84
IV.SOLUN.HHZ. 2023-04-19T23:34:31.46 0.6 undecidable manual S 168 55.7997 50 -0.07 62
IV.ALJA.HHZ. 2023-04-19T23:34:31.58 0.3 undecidable manual P 161 97.7244 50 1.01 63
IV.MTGR.HHZ. 2023-04-19T23:34:30.10 0.3 undecidable manual P 216 94.8384 50 -0.02 88
IV.ERC.EHN. 2023-04-19T23:34:30.12 0.6 undecidable manual P 230 93.1401 50 0.25 56
IV.PLLN.EHZ. 2023-04-19T23:34:29.96 0.3 undecidable manual P 135 92.241 50 0.24 84
IV.CSLB.HHE. 2023-04-19T23:34:29.52 0.3 undecidable manual P 141 91.8414 50 -0.14 86
IV.GIB.HHE. 2023-04-19T23:34:28.96 0.3 undecidable manual P 140 85.5477 50 0.27 85
IV.MBFT.HHZ. 2023-04-19T23:34:28.42 0.3 undecidable manual P 209 80.7636 50 0.46 82
IV.IACL.HHZ. 2023-04-19T23:34:28.69 0.3 undecidable manual P 94 83.0502 50 0.38 83
IV.CORL.HHE. 2023-04-19T23:34:27.38 0.3 undecidable manual P 186 77.0673 50 0 91
IV.MPG.HHZ. 2023-04-19T23:34:27.78 0.6 undecidable manual S 184 47.0196 50 -1.39 38
IV.CIMI.HHE. 2023-04-19T23:34:27.82 0.3 undecidable manual P 169 79.4649 50 0.07 89
IV.MARIO.HHE. 2023-04-19T23:34:26.27 0.3 undecidable manual P 178 69.9744 50 -0.02 92
IV.SOLUN.HHZ. 2023-04-19T23:34:23.84 0.3 undecidable manual P 168 55.7997 50 -0.27 90
IV.USI.HHZ. 2023-04-19T23:34:22.73 0.6 undecidable manual S 306 23.5542 50 -0.17 65
IV.MPG.HHZ. 2023-04-19T23:34:21.60 0.3 undecidable manual P 184 47.0196 50 -1.16 65
IV.USI.HHZ. 2023-04-19T23:34:19.16 0.3 undecidable manual P 306 23.5542 50 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPG.HHE. ML:1.6 0.000111198105 0.2816 AML other m 2023-04-19T23:34:29.35
IV.MPG.HHN. ML:1.7 0.0001344867 0.1792 AML other m 2023-04-19T23:34:29.28
IV.SOLUN.HHE. ML:1.8 0.0001595 0.44 AML other m 2023-04-19T23:34:33.78
IV.SOLUN.HHN. ML:1.9 0.000165 1.72 AML other m 2023-04-19T23:34:34.07
IV.MBFT.HHE. ML:1.2 0.000018672 0.256 AML other m 2023-04-19T23:34:39.73
IV.MBFT.HNN. ML:2.0 0.0001317179 0.7296 AML other m 2023-04-19T23:34:39.60
IV.MBFT.HHN. ML:1.2 0.000019450000000000002 1.14 AML other m 2023-04-19T23:34:40.05
IV.MBFT.HNE. ML:1.9 0.00011205975 0.8192 AML other m 2023-04-19T23:34:42.80
IV.HLNI.HHE. ML:1.9 0.000024929195 1.2416 AML other m 2023-04-19T23:34:43.14
IV.PLLN.EHN. ML:1.8 0.00007544721499999999 0.3584 AML other m 2023-04-19T23:34:47.32
IV.IACL.HHN. ML:1.7 0.0000665159 0.3584 AML other m 2023-04-19T23:34:47.92
IV.ALJA.HHN. ML:1.8 0.00006075 0.42 AML other m 2023-04-19T23:34:48.23
IV.PLLN.EHE. ML:1.7 0.00005269741 1.4112 AML other m 2023-04-19T23:34:49.27
IV.ALJA.HHE. ML:1.6 0.00004508297 0.8192 AML other m 2023-04-19T23:34:53.25
IV.IFIL.HHE. ML:2.3 0.000185 1.62 AML other m 2023-04-19T23:34:53.88
IV.IFIL.HHN. ML:1.9 0.00007245337 1.6544 AML other m 2023-04-19T23:34:53.07
IV.RAFF.HNE. ML:2.1 0.000049230245 0.976 AML other m 2023-04-19T23:35:04.07
IV.RAFF.HHN. ML:1.8 0.000025423415 1.344 AML other m 2023-04-19T23:35:06.29
IV.RAFF.HHE. ML:1.8 0.000024267259999999998 1.1904 AML other m 2023-04-19T23:35:07.75
IV.HLNI.HHN. ML:1.5 0.000009171107 1.6 AML other m 2023-04-19T23:35:07.20
IV.HLNI.HNN. ML:2.4 0.00008996652 2.1376 AML other m 2023-04-19T23:35:09.16
IV.HLNI.HNE. ML:2.4 0.00009102822 0.64 AML other m 2023-04-19T23:35:11.55
IV.RAFF.HNN. ML:2.2 0.000055760355 1.4208 AML other m 2023-04-19T23:35:32.82
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