Earthquake with magnitude of ML 1.1 on date 15-04-2023 and time 09:59:50 (Italy) in region 8 km N Montone (PG)

A magnitude ML 1.1 earthquake occured in region: 8 km N Montone (PG), on

  • 15-04-2023 07:59:50 (UTC)
  • 15-04-2023 09:59:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4330, 12.3390 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
Montone PG 8 1680 1680
Pietralunga PG 8 2111 3791
CittĂ  di Castello PG 9 39913 43704
Umbertide PG 14 16681 60385
Monte Santa Maria Tiberina PG 14 1183 61568
Apecchio PU 16 1882 63450
San Giustino PG 18 11297 74747
Monterchi AR 19 1757 76504
Citerna PG 19 3531 80035

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km N of Perugia (166134 inhabitants)
37 Km E of Arezzo (99543 inhabitants)
61 Km NW of Foligno (57155 inhabitants)
71 Km SW of Pesaro (94582 inhabitants)
71 Km SW of Fano (60888 inhabitants)
72 Km S of Rimini (147750 inhabitants)
79 Km S of Cesena (96758 inhabitants)
82 Km E of Siena (53903 inhabitants)
91 Km S of Forlì (117913 inhabitants)
95 Km E of Firenze (382808 inhabitants)
97 Km W of Ancona (100861 inhabitants)
100 Km N of Terni (111501 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 1.1 2023-04-15
07:59:50
43.4332 12.3392 9 2023-04-15
08:03:44
Sala Sismica INGV-Roma 116404131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-15 07:59:50 ± 0.07
Latitude 43.4332 ± 0.0036
Longitude 12.3392 ± 0.0050
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 116404131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 352
Semi-minor axis of confidence ellipse (meter) 345
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 190
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33635
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 116404131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-15 08:03:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2023-04-15T08:00:11.56 3.0 undecidable manual P 2.11 0
IV.CRE.HHZ. 2023-04-15T08:00:03.76 0.6 undecidable manual S 304 37.3293 50 -0.02 49
IV.CAFI.HHZ. 2023-04-15T08:00:02.23 0.6 undecidable manual S 249 32.2455 50 -0.17 48
IV.PARC.HHZ. 2023-04-15T08:00:00.10 0.6 undecidable manual S 341 25.2525 109 -0.01 50
IV.MURB.HHZ. 2023-04-15T07:59:59.49 0.6 undecidable manual S 142 24.0537 110 -0.24 48
IV.PIEI.HHZ. 2023-04-15T07:59:58.58 0.6 undecidable manual S 54 19.4694 114 0.34 47
IV.CRE.HHZ. 2023-04-15T07:59:58.06 1.0 negative manual P 304 37.3293 50 -0.25 23
IV.CAFI.HHZ. 2023-04-15T07:59:57.45 1.0 undecidable manual P 249 32.2455 50 -0.07 24
IV.FRON.EHZ. 2023-04-15T07:59:57.38 1.0 undecidable manual P 73 32.5452 50 -0.18 24
IV.ATMI.HHZ. 2023-04-15T07:59:56.18 0.6 undecidable manual S 208 12.3765 125 0.08 50
IV.NARO.HHZ. 2023-04-15T07:59:56.53 3.0 undecidable manual P 0 0
IV.PARC.HHZ. 2023-04-15T07:59:56.16 1.0 negative manual P 341 25.2525 109 -0.03 25
IV.MURB.HHZ. 2023-04-15T07:59:56.21 0.1 undecidable manual P 142 24.0537 110 0.24 96
IV.ATFO.HHZ. 2023-04-15T07:59:55.30 0.1 undecidable manual P 111 20.1687 114 0.06 100
IV.PIEI.HHZ. 2023-04-15T07:59:55.19 0.1 undecidable manual P 54 19.4694 114 0.08 100
IV.BADI.EHZ. 2023-04-15T07:59:55.95 0.6 undecidable manual S 318 11.3775 128 0.12 50
IV.ATMI.HHZ. 2023-04-15T07:59:54.28 1.0 undecidable manual P 208 12.3765 125 0.4 24
IV.BADI.EHZ. 2023-04-15T07:59:53.86 0.6 undecidable manual P 318 11.3775 128 0.14 50
IV.ATPI.EHZ. 2023-04-15T07:59:53.80 0.6 undecidable manual S 69 5.3946 148 -0.62 45
IV.ATPI.EHZ. 2023-04-15T07:59:52.73 0.1 undecidable manual P 69 5.3946 148 -0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHE. ML:1.5 0.0006355 1.26 AML other m 2023-04-15T07:59:54.93
IV.ATPI.EHN. ML:1.2 0.000282 1.06 AML other m 2023-04-15T07:59:54.87
IV.BADI.EHE. ML:1.2 0.000202 0.44 AML other m 2023-04-15T07:59:56.20
IV.BADI.EHN. ML:1.1 0.000152 0.5 AML other m 2023-04-15T07:59:56.21
IV.PIEI.HHN. ML:1.2 0.00010965 1.58 AML other m 2023-04-15T07:59:58.89
IV.PIEI.HHE. ML:1.2 0.0001348 0.18 AML other m 2023-04-15T07:59:59.20
IV.PARC.HHE. ML:0.9 0.00005044999999999999 1.12 AML other m 2023-04-15T08:00:00.80
IV.MURB.HHN. ML:1.1 0.0000745 0.62 AML other m 2023-04-15T08:00:01.34
IV.PARC.HHN. ML:1.0 0.00006170000000000001 0.36 AML other m 2023-04-15T08:00:01.24
IV.ATMI.HHE. ML:1.0 0.0001087 0.34 AML other m 2023-04-15T08:00:02.47
IV.FRON.EHE. ML:0.8 0.000028250000000000002 0.44 AML other m 2023-04-15T08:00:03.11
IV.ATMI.HHN. ML:0.9 0.0000981 1.22 AML other m 2023-04-15T08:00:03.73
IV.MURB.HHE. ML:1.1 0.00008049999999999999 0.32 AML other m 2023-04-15T08:00:03.21
IV.FRON.EHN. ML:1.0 0.0000393 0.44 AML other m 2023-04-15T08:00:03.69
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