Earthquake with magnitude of ML 0.8 on date 27-01-2023 and time 22:41:23 (UTC) in region 3 km W Preci (PG)

A magnitude ML 0.8 earthquake occured in region: 3 km W Preci (PG), on

  • 27-01-2023 22:41:23 (UTC)
  • 27-01-2023 23:41:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8890, 13.0050 at 11 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Preci PG 3 724 724
Sellano PG 6 1079 1803
Visso MC 8 1107 2910
Cerreto di Spoleto PG 11 1075 3985
Monte Cavallo MC 12 145 4130
Castelsantangelo sul Nera MC 12 281 4411
Ussita MC 13 444 4855
Norcia PG 13 4957 9812
Vallo di Nera PG 18 364 10176
Pieve Torina MC 18 1458 11634
Fiordimonte MC 18 202 11836
Cascia PG 19 3217 15053

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
56 Km E of Perugia (166134 inhabitants)
63 Km W of Teramo (54892 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
91 Km SW of Ancona (100861 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 0.8 2023-01-27
22:41:23
42.8892 13.0048 11 2024-03-01
17:18:05
Bollettino Sismico Italiano INGV 116768951
Reviewed
Rev100
ML 1.0 2023-01-27
22:41:23
42.892 13.0037 11 2023-01-27
22:59:43
Sala Sismica INGV-Roma 113840091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-27 22:41:23 ± 0.07
Latitude 42.8892 ± 0.0036
Longitude 13.0048 ± 0.0061
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116768951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 461
Semi-minor axis of confidence ellipse (meter) 392
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 269
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33005
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 113840091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-27 22:59:43

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 116768951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-26 12:57:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2023-01-27T22:41:37.12 0.6 undecidable manual Sg 100
IV.SRES.HHZ. 2023-01-27T22:41:35.75 3.0 undecidable manual P -0.02 0
IV.PF6.EHN. 2023-01-27T22:41:34.66 0.6 undecidable manual S 29 31.5462 50 -0.03 64
IV.LNSS.HHZ. 2023-01-27T22:41:34.43 0.3 undecidable manual S 175 31.8459 50 -0.34 90
IV.CSP1.EHZ. 2023-01-27T22:41:34.00 0.6 undecidable manual S 36 27.75 50 0.34 60
7F.SIB2.EHZ. 2023-01-27T22:41:32.52 0.3 undecidable manual S 89 24.2535 50 -0.22 94
7F.SIB1.EHZ. 2023-01-27T22:41:31.91 0.3 undecidable manual S 88 21.5673 50 -0.1 96
IV.MOMA.HNZ. 2023-01-27T22:41:31.30 0.3 undecidable manual P 255 36.6411 50 0.47 87
7F.SIB3.EHZ. 2023-01-27T22:41:31.60 0.6 undecidable manual S 94 21.5673 50 -0.42 60
IV.LNSS.HHZ. 2023-01-27T22:41:30.00 0.3 undecidable manual P 175 31.8459 50 -0.09 95
IV.MC2.EHZ. 2023-01-27T22:41:30.42 0.6 undecidable manual S 81 15.1737 125 0.27 63
IV.FDMO.HHZ. 2023-01-27T22:41:30.71 0.6 undecidable manual S 22 17.6712 121 -0.17 64
IV.CESI.HHZ. 2023-01-27T22:41:29.83 0.3 undecidable manual S 328 15.1737 125 -0.33 93
IV.CSP1.EHZ. 2023-01-27T22:41:29.43 0.6 positive manual P 36 27.75 50 -0.02 65
IV.PF6.EHN. 2023-01-27T22:41:29.91 0.3 undecidable manual P 29 31.5462 50 -0.14 94
7F.SIB3.EHZ. 2023-01-27T22:41:28.93 0.3 undecidable manual P 94 21.5673 50 0.42 90
7F.SIB2.EHZ. 2023-01-27T22:41:28.96 0.3 undecidable manual P 89 24.2535 50 0.04 97
IV.FEMA.HNZ. 2023-01-27T22:41:28.61 0.3 undecidable manual S 24 8.88 140 0.08 99
7F.SIB1.EHZ. 2023-01-27T22:41:28.74 0.3 undecidable manual P 88 21.5673 50 0.24 94
IV.NRCA.HHZ. 2023-01-27T22:41:28.88 0.6 undecidable manual S 125 10.7781 135 -0.1 65
IT.MTCL.HGZ. 2023-01-27T22:41:28.84 0.6 undecidable manual S 358 11.6772 133 -0.35 62
IV.CESI.HHZ. 2023-01-27T22:41:27.53 1.0 negative manual P 328 15.1737 125 0.1 33
IV.MC2.EHZ. 2023-01-27T22:41:27.75 1.0 undecidable manual P 81 15.1737 125 0.32 31
IV.FDMO.HHZ. 2023-01-27T22:41:27.84 0.3 positive manual P 22 17.6712 121 0 99
IV.NRCA.HHZ. 2023-01-27T22:41:26.77 0.3 undecidable manual P 125 10.7781 135 0.02 100
IT.MTCL.HGZ. 2023-01-27T22:41:26.86 0.6 undecidable manual P 358 11.6772 133 -0.02 67
IV.FEMA.HNZ. 2023-01-27T22:41:26.73 0.3 undecidable manual P 24 8.88 140 0.23 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.9 0.00009609999999999999 1.86 AML other m 2023-01-27T22:41:28.04
IV.NRCA.HHE. ML:1.0 0.00011764999999999999 1.1 AML other m 2023-01-27T22:41:29.20
IV.CESI.HHN. ML:0.5 0.000031958448 0.1408 AML other m 2023-01-27T22:41:30.21
IV.CESI.HHE. ML:0.6 0.00004004993 2.1632 AML other m 2023-01-27T22:41:30.79
IV.MC2.EHN. ML:0.9 0.0000756429905 0.192 AML other m 2023-01-27T22:41:31.92
IV.MC2.EHE. ML:0.9 0.00007112753 0.1664 AML other m 2023-01-27T22:41:31.78
IV.FDMO.HHE. ML:0.6 0.00003065524 0.1152 AML other m 2023-01-27T22:41:30.96
IV.FDMO.HHN. ML:0.7 0.00004043524 0.1792 AML other m 2023-01-27T22:41:30.92
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