Earthquake with magnitude of ML 0.9 on date 20-03-2023 and time 23:25:56 (Italy) in region 5 km W Costacciaro (PG)

A magnitude ML 0.9 earthquake occured in region: 5 km W Costacciaro (PG), on

  • 20-03-2023 22:25:56 (UTC)
  • 20-03-2023 23:25:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3530, 12.6510 at 10 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
Costacciaro PG 5 1216 1216
Gubbio PG 6 32216 33432
Scheggia e Pascelupo PG 6 1393 34825
Sigillo PG 8 2404 37229
Fossato di Vico PG 11 2840 40069
Cantiano PU 14 2245 42314
Gualdo Tadino PG 17 15208 57522
Serra Sant'Abbondio PU 18 1027 58549
Sassoferrato AN 19 7285 65834
Frontone PU 20 1300 67134
Pietralunga PG 20 2111 69245

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NE of Perugia (166134 inhabitants)
44 Km N of Foligno (57155 inhabitants)
62 Km SW of Fano (60888 inhabitants)
63 Km E of Arezzo (99543 inhabitants)
66 Km SW of Pesaro (94582 inhabitants)
76 Km W of Ancona (100861 inhabitants)
79 Km S of Rimini (147750 inhabitants)
88 Km N of Terni (111501 inhabitants)
93 Km SE of Cesena (96758 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 0.9 2023-03-20
22:25:56
43.3528 12.6512 10 2023-03-20
22:32:35
Sala Sismica INGV-Roma 115573201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-20 22:25:56 ± 0.03
Latitude 43.3528 ± 0.0018
Longitude 12.6512 ± 0.0025
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 115573201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 190
Semi-minor axis of confidence ellipse (meter) 129
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 288
Circular confidence region, given by single value of horizontal uncertainty (meter) 190.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.09893
Epicentral distance of station farthest from the epicenter (degree) 0.28688
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 115573201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-20 22:32:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPAG.EHZ. 2023-03-20T22:26:07.53 0.6 undecidable manual S 16 31.8459 50 0.26 47
IV.NARO.HHZ. 2023-03-20T22:26:06.56 0.3 undecidable manual S 349 29.1486 50 0.01 75
IV.ARVD.HHZ. 2023-03-20T22:26:06.41 0.3 undecidable manual S 55 28.4493 50 0.06 74
IV.PIEI.HHZ. 2023-03-20T22:26:04.70 0.3 undecidable manual S 335 22.3554 115 0.01 76
IV.FRON.EHZ. 2023-03-20T22:26:03.72 0.3 undecidable manual S 18 19.2696 118 -0.02 76
IV.ATVO.HHZ. 2023-03-20T22:26:03.87 0.3 undecidable manual S 279 19.9689 117 -0.09 75
IV.ATCC.EHZ. 2023-03-20T22:26:03.54 0.3 undecidable manual S 183 18.6702 119 -0.01 76
IV.SSFR.HHZ. 2023-03-20T22:26:02.27 0.3 undecidable manual S 49 14.0748 126 0.06 76
IV.MURB.HHZ. 2023-03-20T22:26:02.46 0.3 undecidable manual S 226 14.2746 126 0.19 74
IV.MPAG.EHZ. 2023-03-20T22:26:02.46 0.6 undecidable manual P 16 31.8459 50 -0.11 49
IV.FOSV.EHZ. 2023-03-20T22:26:01.24 0.3 undecidable manual S 126 10.9779 133 -0.15 75
IV.ARVD.HHZ. 2023-03-20T22:26:01.92 0.3 positive manual P 55 28.4493 50 -0.11 73
IV.NARO.HHZ. 2023-03-20T22:26:01.95 0.6 positive manual P 349 29.1486 50 -0.2 48
IV.ATCC.EHZ. 2023-03-20T22:26:00.40 0.6 negative manual P 183 18.6702 119 -0.02 51
IV.FRON.EHZ. 2023-03-20T22:26:00.45 0.6 undecidable manual P 18 19.2696 118 -0.08 50
IV.ATVO.HHZ. 2023-03-20T22:26:00.63 0.3 undecidable manual P 279 19.9689 117 -0.03 76
IV.PIEI.HHZ. 2023-03-20T22:26:00.99 0.6 undecidable manual P 335 22.3554 115 -0.09 50
IV.FOSV.EHZ. 2023-03-20T22:25:59.17 0.6 undecidable manual P 126 10.9779 133 0 52
IV.SSFR.HHZ. 2023-03-20T22:25:59.77 0.1 undecidable manual P 49 14.0748 126 0.13 100
IV.MURB.HHZ. 2023-03-20T22:25:59.79 0.6 negative manual P 226 14.2746 126 0.11 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHE. ML:1.0 0.00009745000000000001 0.24 AML other m 2023-03-20T22:26:02.80
IV.MURB.HHE. ML:1.2 0.0001735 1.68 AML other m 2023-03-20T22:26:03.87
IV.MURB.HHN. ML:1.1 0.00011999999999999999 0.26 AML other m 2023-03-20T22:26:03.07
IV.SSFR.HHN. ML:0.7 0.00005555 0.18 AML other m 2023-03-20T22:26:03.60
IV.ATCC.EHE. ML:0.8 0.000057300000000000004 1.42 AML other m 2023-03-20T22:26:03.80
IV.ATCC.EHN. ML:0.6 0.0000363 0.16 AML other m 2023-03-20T22:26:03.97
IV.FRON.EHN. ML:0.8 0.000044149999999999996 0.82 AML other m 2023-03-20T22:26:04.48
IV.FRON.EHE. ML:0.4 0.000021499999999999997 0.46 AML other m 2023-03-20T22:26:04.76
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