Earthquake with magnitude of ML 1.0 on date 19-03-2023 and time 04:28:38 (UTC) in region 5 km NE Città di Castello (PG)

A magnitude ML 1.0 earthquake occured in region: 5 km NE Città di Castello (PG), on

  • 19-03-2023 04:28:38 (UTC)
  • 19-03-2023 05:28:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4820, 12.2910 at 7 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
Città di Castello PG 5 39913 39913
Monte Santa Maria Tiberina PG 11 1183 41096
San Giustino PG 12 11297 52393
Pietralunga PG 13 2111 54504
Montone PG 13 1680 56184
Apecchio PU 14 1882 58066
Citerna PG 14 3531 61597
Monterchi AR 14 1757 63354
Sansepolcro AR 16 15884 79238
Mercatello sul Metauro PU 19 1378 80616
Borgo Pace PU 20 606 81222
Umbertide PG 20 16681 97903
Anghiari AR 20 5638 103541

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Arezzo (99543 inhabitants)
42 Km N of Perugia (166134 inhabitants)
67 Km NW of Foligno (57155 inhabitants)
68 Km SW of Rimini (147750 inhabitants)
69 Km SW of Pesaro (94582 inhabitants)
71 Km SW of Fano (60888 inhabitants)
73 Km S of Cesena (96758 inhabitants)
80 Km E of Siena (53903 inhabitants)
85 Km S of Forlì (117913 inhabitants)
89 Km E of Firenze (382808 inhabitants)
94 Km E of Scandicci (50609 inhabitants)
95 Km SE of Faenza (58541 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 1.4
ML 1.0
2023-03-19
04:28:38
43.4823 12.2907 7 2023-03-19
04:34:47
Sala Sismica INGV-Roma 115524131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-19 04:28:38 ± 0.11
Latitude 43.4823 ± 0.0036
Longitude 12.2907 ± 0.0025
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 115524131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 331
Semi-minor axis of confidence ellipse (meter) 202
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 6
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 198
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.06
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18526
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 1.0
Num. used stations 4
Type of magnitude ML
Reference to an origin 115524131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-19 04:34:47

Md:1.4

Field Value
Value 1.4
Uncertainty 0.0
Num. used stations 1
Type of magnitude Md
Reference to an origin 115524131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-19 04:34:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.CAE.HHZ. 2023-03-19T04:29:36.34 3.0 undecidable manual Sg 7.49 0
IV.PIEI.HHZ. 2023-03-19T04:28:46.18 0.6 undecidable manual S 73 20.5683 108 0.13 64
IV.APEC.HHZ. 2023-03-19T04:28:43.68 0.6 undecidable manual S 51 13.3755 116 -0.07 66
IV.PIEI.HHZ. 2023-03-19T04:28:42.83 0.6 undecidable manual P 73 20.5683 108 -0.06 65
IV.ATPI.EHZ. 2023-03-19T04:28:42.61 0.6 undecidable manual S 111 9.6792 124 -0.01 67
IV.APEC.HHZ. 2023-03-19T04:28:41.56 0.3 negative manual P 51 13.3755 116 0 100
IV.BADI.EHZ. 2023-03-19T04:28:41.39 0.6 undecidable manual S 309 4.7952 144 -0.01 68
IV.ATPI.EHZ. 2023-03-19T04:28:40.87 1.0 undecidable manual P 111 9.6792 124 -0.04 33
IV.BADI.EHZ. 2023-03-19T04:28:40.26 0.6 undecidable manual P 309 4.7952 144 0.05 67
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APEC.HNE. ML:1.7 0.00065281925 1.2192 AML other m 2023-03-19T04:28:52.45
IV.APEC.HNN. ML:1.9 0.0009699042 1.3792 AML other m 2023-03-19T04:28:56.78
IV.APEC.HHE. ML:0.2 0.000019899985 0.1792 AML other m 2023-03-19T04:28:44.21
IV.APEC.HHN. ML:-0.1 0.000011763696000000001 0.0992 AML other m 2023-03-19T04:28:43.91
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