Earthquake with magnitude of Md 1.1 on date 31-01-2023 and time 22:55:05 (Italy) in region 3 km NE Fossato di Vico (PG)

A magnitude Md 1.1 earthquake occured in region: 3 km NE Fossato di Vico (PG), on

  • 31-01-2023 21:55:05 (UTC)
  • 31-01-2023 22:55:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3110, 12.7880 at 9 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
Fossato di Vico PG 3 2840 2840
Sigillo PG 4 2404 5244
Costacciaro PG 8 1216 6460
Gualdo Tadino PG 9 15208 21668
Fabriano AN 10 31480 53148
Scheggia e Pascelupo PG 14 1393 54541
Esanatoglia MC 15 2034 56575
Sassoferrato AN 15 7285 63860
Cerreto d'Esi AN 16 3817 67677
Gubbio PG 18 32216 99893
Fiuminata MC 18 1402 101295
Genga AN 18 1797 103092
Matelica MC 19 9981 113073

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NE of Perugia (166134 inhabitants)
40 Km N of Foligno (57155 inhabitants)
62 Km SW of Fano (60888 inhabitants)
68 Km S of Pesaro (94582 inhabitants)
68 Km SW of Ancona (100861 inhabitants)
75 Km E of Arezzo (99543 inhabitants)
84 Km N of Terni (111501 inhabitants)
85 Km S of Rimini (147750 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
Md 1.1 2023-01-31
21:55:05
43.3113 12.7875 9 2023-01-31
22:01:19
Sala Sismica INGV-Roma 113944441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-31 21:55:05 ± 0.12
Latitude 43.3113 ± 0.0054
Longitude 12.7875 ± 0.0087
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 113944441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 693
Semi-minor axis of confidence ellipse (meter) 511
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 119
Circular confidence region, given by single value of horizontal uncertainty (meter) 690.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.02518
Epicentral distance of station farthest from the epicenter (degree) 0.33455
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 5
Type of magnitude Md
Reference to an origin 113944441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-31 22:01:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2023-01-31T21:55:19.08 0.6 undecidable manual S 333 37.1295 50 0.56 43
IV.PIEI.HHZ. 2023-01-31T21:55:16.90 0.6 undecidable manual S 321 32.1456 50 -0.28 47
IV.FRON.EHZ. 2023-01-31T21:55:14.05 0.6 undecidable manual S 348 23.4543 111 -0.42 46
IV.ARVD.HHZ. 2023-01-31T21:55:14.62 0.6 undecidable manual S 31 24.1536 111 -0.09 49
IV.NARO.HHZ. 2023-01-31T21:55:13.52 0.3 undecidable manual P 333 37.1295 50 0.41 68
IV.ATCC.EHZ. 2023-01-31T21:55:12.66 0.6 undecidable manual S 220 18.3705 117 -0.22 49
IV.PIEI.HHZ. 2023-01-31T21:55:11.70 1.0 undecidable manual P 321 32.1456 50 -0.64 21
IV.SNTG.HHZ. 2023-01-31T21:55:11.54 0.6 undecidable manual S 117 13.875 124 0.03 51
IV.SSFR.HHZ. 2023-01-31T21:55:11.69 0.6 undecidable manual S 358 13.875 124 0.18 49
IV.FRON.EHZ. 2023-01-31T21:55:10.51 1.0 undecidable manual P 348 23.4543 111 -0.27 24
IV.ARVD.HHZ. 2023-01-31T21:55:10.71 0.1 undecidable manual P 31 24.1536 111 -0.2 96
IV.SSFR.HHZ. 2023-01-31T21:55:09.18 0.6 positive manual P 358 13.875 124 0.11 50
IV.FOSV.EHZ. 2023-01-31T21:55:09.45 0.6 undecidable manual S 229 2.7972 163 0.37 48
IV.ATCC.EHZ. 2023-01-31T21:55:09.60 0.3 positive manual P 220 18.3705 117 -0.25 72
IV.SNTG.HHZ. 2023-01-31T21:55:09.06 0.6 undecidable manual P 117 13.875 124 -0.01 51
IV.FOSV.EHZ. 2023-01-31T21:55:07.87 0.1 negative manual P 229 2.7972 163 0.2 100
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