Earthquake with magnitude of ML 1.9 on date 26-02-2023 and time 10:31:09 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 1.9 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 26-02-2023 10:31:09 (UTC)
  • 26-02-2023 11:31:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.6650, 14.1760 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
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 1.9 2023-02-26
10:31:09
38.6653 14.1755 10 2024-03-01
17:18:12
Bollettino Sismico Italiano INGV 118539931
Reviewed
Rev100
ML 1.8 2023-02-26
10:31:10
38.6162 14.1697 10 2023-02-26
14:54:01
Sala Sismica INGV-Roma 114826401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-26 10:31:09 ± 0.33
Latitude 38.6653 ± 0.0162
Longitude 14.1755 ± 0.0127
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118539931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1845
Semi-minor axis of confidence ellipse (meter) 850
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 170
Circular confidence region, given by single value of horizontal uncertainty (meter) 1850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 236
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.08098
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 118539931
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-07 00:45:09

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 114826401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-26 14:54:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAMP.HHZ. 2023-02-26T10:33:21.56 3.0 undecidable manual Sg 14.28 0
IV.NRCA.HNZ. 2023-02-26T10:33:09.47 3.0 undecidable manual Sn -5.93 0
IV.BDI.HHZ. 2023-02-26T10:33:05.41 3.0 positive manual Pg 18.35 0
HL.ITM.HHZ. 2023-02-26T10:33:00.53 3.0 undecidable manual Pg 16.67 0
OX.MARN.HHZ. 2023-02-26T10:32:59.55 3.0 undecidable manual Pn -5.14 0
IV.IMOL.HNZ. 2023-02-26T10:32:47.11 3.0 negative manual Pn 0.71 0
IV.RIBO.EHZ.01 2023-02-26T10:32:41.92 3.0 undecidable manual Pg 10.47 0
IV.VIVA.HHZ. 2023-02-26T10:32:39.38 3.0 undecidable manual Sn -9.99 0
IV.NRCA.HHZ. 2023-02-26T10:32:33.44 3.0 positive manual Pg 10.85 0
IV.PAOL.HHZ. 2023-02-26T10:32:29.60 3.0 undecidable manual Sg 0.18 0
IV.PIPA.HHZ. 2023-02-26T10:32:25.47 3.0 undecidable manual Sg 6.77 0
IV.HPAC.HHZ. 2023-02-26T10:32:14.15 3.0 undecidable manual Sg 9.87 0
IV.LRP.EHZ. 2023-02-26T10:32:10.26 3.0 negative manual Pg 4.55 0
IV.MMN.HHZ. 2023-02-26T10:31:43.68 3.0 undecidable manual Pn -3.88 0
IV.PLLN.EHZ. 2023-02-26T10:31:33.02 0.6 undecidable manual S 182 74.6697 50 0.86 36
IV.MSFR.HHZ. 2023-02-26T10:31:33.44 0.6 undecidable manual S 153 78.8655 50 0.17 44
IV.CSLB.HHZ. 2023-02-26T10:31:32.97 0.6 undecidable manual S 187 81.3519 50 -0.98 34
IV.AIO.HHE. 2023-02-26T10:31:29.23 0.3 undecidable manual P 130 119.991 50 -0.33 59
IV.MPNC.HHN. 2023-02-26T10:31:28.84 0.3 undecidable manual P 119 117.3936 50 -0.32 60
IV.LIBRI.HHN. 2023-02-26T10:31:24.86 0.3 undecidable manual P 134 91.9413 50 -0.38 62
IV.MUCR.HHE. 2023-02-26T10:31:24.81 0.3 undecidable manual P 138 91.9413 50 -0.43 61
IV.SOLUN.HHE. 2023-02-26T10:31:24.54 0.6 undecidable manual P 222 84.6486 50 0.42 42
IV.MPG.HHN. 2023-02-26T10:31:24.90 0.3 undecidable manual P 232 90.243 50 -0.08 66
IV.MSFR.HHZ. 2023-02-26T10:31:23.38 0.3 undecidable manual P 153 78.8655 50 0.16 67
IV.CSLB.HHZ. 2023-02-26T10:31:23.53 0.1 undecidable manual P 187 81.3519 50 -0.08 90
IV.IFIL.HHZ. 2023-02-26T10:31:22.23 0.6 undecidable manual S 108 36.4413 50 0.28 47
IV.PLLN.EHZ. 2023-02-26T10:31:22.80 0.3 undecidable manual P 182 74.6697 50 0.23 66
IV.IFIL.HHZ. 2023-02-26T10:31:17.13 0.3 undecidable manual P 108 36.4413 50 0.45 68
IV.IACL.HHZ. 2023-02-26T10:31:17.61 0.6 undecidable manual S 133 21.3675 115 -0.03 51
IV.IACL.HHZ. 2023-02-26T10:31:14.30 0.1 undecidable manual P 133 21.3675 115 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HNN. ML:1.8 0.00008041387 0.32 AML other m 2023-02-26T10:31:34.03
IV.CSLB.HHN. ML:1.8 0.00008505000000000001 0.32 AML other m 2023-02-26T10:31:34.03
IV.CSLB.HHE. ML:1.7 0.000064975055 0.3392 AML other m 2023-02-26T10:31:34.48
IV.CSLB.HNE. ML:1.7 0.00006705912 0.3072 AML other m 2023-02-26T10:31:34.49
IV.PLLN.EHE. ML:2.1 0.00019821965 0.0992 AML other m 2023-02-26T10:31:35.41
IV.PLLN.EHN. ML:2.5 0.00050712115 0.4608 AML other m 2023-02-26T10:31:38.66
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