Earthquake with magnitude of ML 2.0 on date 20-02-2023 and time 06:43:00 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.0 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 20-02-2023 06:43:00 (UTC)
  • 20-02-2023 07:43:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.6760, 14.1640 at 28 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
87 Km NE of Bagheria (55387 inhabitants)
94 Km NE of Palermo (674435 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 2.0 2023-02-20
06:43:00
38.6762 14.1642 28 2024-03-01
17:18:00
Bollettino Sismico Italiano INGV 115842901
Reviewed
Rev100
ML 2.0 2023-02-20
06:43:01
38.6878 14.1493 10 2023-02-20
06:55:08
Sala Sismica INGV-Roma 114617171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-20 06:43:00 ± 0.19
Latitude 38.6762 ± 0.0108
Longitude 14.1642 ± 0.0115
Depth (km) 28 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115842901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1135
Semi-minor axis of confidence ellipse (meter) 629
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 6
Circular confidence region, given by single value of horizontal uncertainty (meter) 1140.0
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 27
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.62867
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 114617171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-20 06:55:08

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 115842901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-04 08:55:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FRON.EHZ. 2023-02-20T06:44:24.01 3.0 positive manual Pn 7.02 0
IV.FOSV.EHZ. 2023-02-20T06:44:24.37 3.0 undecidable manual Pg 10.44 0
IV.NARO.HHZ. 2023-02-20T06:44:22.63 3.0 undecidable manual Pn 4.05 0
OT.OT12.EHZ. 2023-02-20T06:43:58.32 3.0 undecidable manual Pn 5.62 0
IV.MCRV.HHZ. 2023-02-20T06:43:48.44 3.0 undecidable manual Pg 9.33 0
IV.MSRU.HHZ. 2023-02-20T06:43:35.94 0.6 undecidable manual S 111 125.3745 54 -0.78 35
IV.CET2.HHZ. 2023-02-20T06:43:29.45 0.3 undecidable manual P 58 180.7857 54 0.98 37
IV.MUCR.HHZ. 2023-02-20T06:43:28.00 0.6 undecidable manual S 138 93.5397 102 -0.75 37
IV.LIBRI.HHZ. 2023-02-20T06:43:28.68 0.6 undecidable manual S 134 93.5397 102 -0.06 45
IV.USI.HHZ. 2023-02-20T06:43:26.02 0.3 undecidable manual S 273 85.3479 103 -0.6 58
IV.GIB.HHZ. 2023-02-20T06:43:24.51 0.6 undecidable manual S 189 77.0673 105 0.04 46
IV.PLLN.EHN. 2023-02-20T06:43:24.31 0.3 undecidable manual S 181 75.8685 105 0.15 68
IV.MSFR.HHE. 2023-02-20T06:43:24.82 0.3 undecidable manual S 152 80.364 104 -0.51 62
IV.MSRU.HHZ. 2023-02-20T06:43:20.81 0.3 undecidable manual P 111 125.3745 54 -0.76 53
IV.LIBRI.HHZ. 2023-02-20T06:43:16.50 0.1 undecidable manual P 134 93.5397 102 -0.46 82
IV.SOLUN.HHE. 2023-02-20T06:43:16.12 0.3 undecidable manual P 220 84.9483 103 0.44 63
IV.MUCR.HHZ. 2023-02-20T06:43:16.65 0.1 undecidable manual P 138 93.5397 102 -0.32 85
IV.USI.HHZ. 2023-02-20T06:43:15.83 0.3 undecidable manual P 273 85.3479 103 0.09 68
IV.CSLB.HHZ. 2023-02-20T06:43:15.10 0.3 undecidable manual P 186 82.4508 103 -0.21 66
IV.MSFR.HHE. 2023-02-20T06:43:15.82 0.3 undecidable manual P 152 80.364 104 0.83 55
IV.PLLN.EHN. 2023-02-20T06:43:15.12 0.3 undecidable manual P 181 75.8685 105 0.8 56
IV.IVPL.HHZ. 2023-02-20T06:43:14.95 0.1 undecidable manual P 115 78.2661 104 0.28 87
3D.OEM4.HHN. 2023-02-20T06:43:14.74 0.3 undecidable manual P 113 73.6707 105 0.74 57
IV.IFIL.HHZ. 2023-02-20T06:43:14.60 0.6 undecidable manual S 109 37.7289 121 -0.1 49
IV.IVLT.HHN. 2023-02-20T06:43:14.49 0.6 undecidable manual P 114 74.7696 105 0.33 43
IV.GIB.HHZ. 2023-02-20T06:43:14.35 0.3 undecidable manual P 189 77.0673 105 -0.15 67
IV.IFIL.HHZ. 2023-02-20T06:43:08.83 0.1 positive manual P 109 37.7289 121 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IFIL.HHE. ML:2.8 0.001695034 0.1216 AML other m 2023-02-20T06:43:15.76
IV.IFIL.HHN. ML:2.4 0.0007573487500000001 0.24 AML other m 2023-02-20T06:43:16.97
IV.GIB.HHN. ML:1.9 0.0001105 1.54 AML other m 2023-02-20T06:43:29.22
IV.LIBRI.HNN. ML:2.0 0.00011350000000000001 1.02 AML other m 2023-02-20T06:43:30.42
IV.LIBRI.HHN. ML:1.9 0.00007425 0.48 AML other m 2023-02-20T06:43:30.42
IV.MUCR.HHE. ML:2.0 0.00010564999999999999 0.86 AML other m 2023-02-20T06:43:31.61
IV.LIBRI.HHE. ML:1.9 0.00007615 1.58 AML other m 2023-02-20T06:43:31.99
IV.USI.HHE. ML:1.5 0.00003955 0.18 AML other m 2023-02-20T06:43:31.16
IV.GIB.HHE. ML:1.9 0.00009955 0.58 AML other m 2023-02-20T06:43:31.16
IV.USI.HHN. ML:2.1 0.00014700000000000002 0.96 AML other m 2023-02-20T06:43:31.50
IV.LIBRI.HNE. ML:2.1 0.00011934999999999999 0.7 AML other m 2023-02-20T06:43:32.02
IV.MUCR.HHN. ML:2.1 0.00013800000000000002 1.5 AML other m 2023-02-20T06:43:33.13
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
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