Earthquake with magnitude of ML 1.2 on date 31-03-2023 and time 05:34:35 (Italy) in region 4 km W Borgo Pace (PU)

A magnitude ML 1.2 earthquake occured in region: 4 km W Borgo Pace (PU), on

  • 31-03-2023 03:34:35 (UTC)
  • 31-03-2023 05:34:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6500, 12.2410 at 6 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
Borgo Pace PU 5 606 606
Badia Tedalda AR 8 1087 1693
Mercatello sul Metauro PU 8 1378 3071
Sestino AR 8 1355 4426
Sansepolcro AR 12 15884 20310
San Giustino PG 12 11297 31607
Belforte all'Isauro PU 13 769 32376
Sant'Angelo in Vado PU 14 4133 36509
Pieve Santo Stefano AR 16 3183 39692
Piandimeleto PU 16 2167 41859
Carpegna PU 17 1674 43533
Frontino PU 17 293 43826
Casteldelci RN 17 407 44233
Apecchio PU 18 1882 46115
Lunano PU 19 1527 47642
Pennabilli RN 19 2869 50511
Anghiari AR 19 5638 56149
Citerna PG 20 3531 59680

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NE of Arezzo (99543 inhabitants)
53 Km SW of Rimini (147750 inhabitants)
54 Km S of Cesena (96758 inhabitants)
61 Km W of Pesaro (94582 inhabitants)
62 Km N of Perugia (166134 inhabitants)
66 Km S of Forlì (117913 inhabitants)
66 Km W of Fano (60888 inhabitants)
76 Km SE of Faenza (58541 inhabitants)
80 Km E of Firenze (382808 inhabitants)
82 Km E of Siena (53903 inhabitants)
86 Km S of Ravenna (159116 inhabitants)
86 Km NW of Foligno (57155 inhabitants)
86 Km E of Scandicci (50609 inhabitants)
89 Km SE of Imola (69797 inhabitants)
95 Km E of Prato (191150 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 1.2 2023-03-31
03:34:35
43.6502 12.2412 6 2023-03-31
04:12:26
Sala Sismica INGV-Roma 115902081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-31 03:34:35 ± 0.16
Latitude 43.6502 ± 0.0063
Longitude 12.2412 ± 0.0050
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 115902081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 638
Semi-minor axis of confidence ellipse (meter) 250
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 180
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 174
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00270
Epicentral distance of station farthest from the epicenter (degree) 0.24911
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:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 115902081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-31 04:12:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2023-03-31T03:34:45.02 0.6 undecidable manual S 99 27.6501 101 -0.24 46
IV.PIEI.HHZ. 2023-03-31T03:34:44.80 0.6 undecidable manual S 118 26.8509 102 -0.19 47
IV.ATPC.HNZ. 2023-03-31T03:34:44.66 0.6 undecidable manual S 137 25.5522 102 0.09 48
IV.ATPI.EHZ. 2023-03-31T03:34:44.47 0.3 undecidable manual S 150 25.6521 102 -0.12 71
IV.ATMC.EHZ. 2023-03-31T03:34:43.20 0.6 undecidable manual S 190 22.8549 104 -0.46 44
IV.CRE.HHZ. 2023-03-31T03:34:43.65 0.6 undecidable manual S 262 23.4543 103 -0.21 47
IV.BADI.EHZ. 2023-03-31T03:34:41.58 0.6 undecidable manual S 179 15.5733 110 0.35 46
IV.PIEI.HHZ. 2023-03-31T03:34:41.04 1.0 positive manual P 118 26.8509 102 0.07 24
IV.SSP9.EHZ. 2023-03-31T03:34:40.87 0.6 undecidable manual S 226 12.1767 115 0.72 41
IV.ATPI.EHZ. 2023-03-31T03:34:40.62 1.0 undecidable manual P 150 25.6521 102 -0.12 24
IV.NARO.HHZ. 2023-03-31T03:34:40.87 0.1 undecidable manual P 99 27.6501 101 -0.26 92
IV.ATPC.HNZ. 2023-03-31T03:34:40.74 0.1 undecidable manual P 137 25.5522 102 0.01 97
IV.CRE.HHZ. 2023-03-31T03:34:40.00 0.3 positive manual P 262 23.4543 103 -0.32 69
IV.PE3.EHZ. 2023-03-31T03:34:40.31 0.1 undecidable manual P 76 21.0678 105 0.45 89
IV.ATMC.EHZ. 2023-03-31T03:34:39.93 0.1 undecidable manual P 190 22.8549 104 -0.27 93
IV.APEC.HNZ. 2023-03-31T03:34:39.44 0.1 undecidable manual P 125 17.5713 108 0.26 94
IV.SSP9.EHZ. 2023-03-31T03:34:38.44 0.1 negative manual P 226 12.1767 115 0.26 94
IV.BADI.EHZ. 2023-03-31T03:34:38.89 0.1 undecidable manual P 179 15.5733 110 0.09 97
IV.PARC.HHZ. 2023-03-31T03:34:37.23 0.6 undecidable manual S 229 0.2997 177 -0.19 49
IV.PARC.HHZ. 2023-03-31T03:34:36.52 0.1 undecidable manual P 229 0.2997 177 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BADI.EHE. ML:1.3 0.000214 0.5 AML other m 2023-03-31T03:34:42.30
IV.BADI.EHN. ML:1.1 0.00014649999999999998 0.2 AML other m 2023-03-31T03:34:42.31
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download