Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 27-05-2023 and time 16:59:37 (Italy) in region 6 km SE Valfabbrica (PG)

A magnitude ML 1.5 earthquake occured in region: 6 km SE Valfabbrica (PG), on

  • 27-05-2023 14:59:37 (UTC)
  • 27-05-2023 16:59:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1210, 12.6560 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Valfabbrica PG 6 3389 3389
Assisi PG 6 28299 31688
Bastia Umbra PG 11 21874 53562
Valtopina PG 11 1398 54960
Nocera Umbra PG 11 5839 60799
Spello PG 14 8645 69444
Cannara PG 15 4305 73749
Gualdo Tadino PG 16 15208 88957
Bettona PG 18 4367 93324
Foligno PG 19 57155 150479

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km N of Foligno (57155 inhabitants)
22 Km E of Perugia (166134 inhabitants)
62 Km N of Terni (111501 inhabitants)
73 Km SE of Arezzo (99543 inhabitants)
86 Km SW of Fano (60888 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
90 Km S of Pesaro (94582 inhabitants)
100 Km NW of Teramo (54892 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 1.5 2023-05-27
14:59:37		 43.1213 12.6558 11 2023-05-27
15:20:31		 Sala Sismica INGV-Roma 117780031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-27 14:59:37 ± 0.05
Latitude 43.1213 ± 0.0027
Longitude 12.6558 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117780031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 373
Semi-minor axis of confidence ellipse (meter) 201
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 235
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.44157
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 117780031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-27 15:20:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2023-05-27T14:59:53.63 0.6 undecidable manual S 130 49.0176 50 0.03 47
IV.CSP1.EHZ. 2023-05-27T14:59:52.94 0.3 undecidable manual S 94 44.622 50 0.53 63
IV.EL6.EHZ. 2023-05-27T14:59:52.40 0.3 undecidable manual S 57 42.8238 50 0.47 64
IV.ATPI.EHZ. 2023-05-27T14:59:51.55 0.3 undecidable manual S 331 41.9247 50 -0.14 69
IV.SSFR.HHZ. 2023-05-27T14:59:50.20 0.3 undecidable manual S 16 36.4413 50 -0.03 71
IV.PARC.HHZ. 2023-05-27T14:59:50.86 3.0 negative manual P 0.7 0
IV.MOMA.HHZ. 2023-05-27T14:59:50.40 0.6 undecidable manual S 191 35.9418 50 0.3 45
IV.FDMO.HHZ. 2023-05-27T14:59:50.13 0.3 undecidable manual S 105 36.2415 50 -0.05 71
IV.GUMA.HHZ. 2023-05-27T14:59:50.42 3.0 negative manual P 2.28 0
IV.CAFI.HHZ. 2023-05-27T14:59:49.38 3.0 undecidable manual P 0.29 0
IV.ATVA.EHE. 2023-05-27T14:59:49.75 0.6 undecidable manual S 300 34.6431 50 -0.02 48
IV.ATLO.HNE. 2023-05-27T14:59:48.26 0.3 undecidable manual S 317 29.4483 50 -0.11 71
IV.MPAG.EHZ. 2023-05-27T14:59:48.29 3.0 positive manual P -0.02 0
IV.ATFO.HHZ. 2023-05-27T14:59:48.10 0.3 undecidable manual S 346 28.0497 50 0.1 71
IV.SNTG.HHZ. 2023-05-27T14:59:47.43 0.3 undecidable manual S 57 27.3504 50 -0.39 67
IV.MGAB.HHZ. 2023-05-27T14:59:47.40 3.0 positive manual P -0.03 0
IV.MML1.HNE. 2023-05-27T14:59:47.07 0.3 undecidable manual S 92 25.5522 50 -0.27 69
IV.CESI.HHZ. 2023-05-27T14:59:46.52 0.3 undecidable manual S 123 23.9538 50 -0.38 68
IV.CSP1.EHZ. 2023-05-27T14:59:46.79 0.3 undecidable manual P 94 44.622 50 0.5 64
IV.EL6.EHZ. 2023-05-27T14:59:46.08 0.3 undecidable manual P 57 42.8238 50 0.07 70
IV.CESX.HHZ. 2023-05-27T14:59:46.18 3.0 undecidable manual P -2.45 0
IV.NRCA.HHZ. 2023-05-27T14:59:46.91 0.3 undecidable manual P 130 49.0176 50 -0.06 69
IV.PIEI.HHZ. 2023-05-27T14:59:46.31 3.0 positive manual P -0.34 0
IV.ATPI.EHZ. 2023-05-27T14:59:45.88 0.3 undecidable manual P 331 41.9247 50 0.01 71
IV.ATMI.HHZ. 2023-05-27T14:59:45.72 3.0 undecidable manual P 0.47 0
IV.MURB.HHZ. 2023-05-27T14:59:45.60 0.3 undecidable manual S 326 18.9699 119 0.16 72
IV.FOSV.EHZ. 2023-05-27T14:59:45.90 0.3 undecidable manual S 24 21.0678 116 -0.18 71
IV.SSFR.HHZ. 2023-05-27T14:59:44.82 0.3 undecidable manual P 16 36.4413 50 -0.21 69
IV.SNTG.HHZ. 2023-05-27T14:59:44.55 1.0 undecidable manual P 57 27.3504 50 0.91 18
IV.MOMA.HHZ. 2023-05-27T14:59:44.83 0.6 undecidable manual P 191 35.9418 50 -0.12 47
IV.FDMO.HHZ. 2023-05-27T14:59:44.96 0.3 undecidable manual P 105 36.2415 50 -0.04 71
IV.ATVA.EHE. 2023-05-27T14:59:44.81 1.0 undecidable manual P 300 34.6431 50 0.05 24
IV.MML1.HNE. 2023-05-27T14:59:43.12 0.3 undecidable manual P 92 25.5522 50 -0.24 70
IV.ATLO.HNE. 2023-05-27T14:59:43.84 0.3 undecidable manual P 317 29.4483 50 -0.11 71
IV.CESI.HHZ. 2023-05-27T14:59:43.23 0.3 undecidable manual P 123 23.9538 50 0.12 72
IV.TSM1.DHE.01 2023-05-27T14:59:43.18 0.6 undecidable manual P 349 25.2525 50 -0.14 48
IV.ATFO.HHZ. 2023-05-27T14:59:43.89 0.3 undecidable manual P 346 28.0497 50 0.15 71
IV.ATCC.EHZ. 2023-05-27T14:59:42.43 0.3 undecidable manual S 350 7.1928 146 0.1 74
IV.FOSV.EHZ. 2023-05-27T14:59:42.46 0.3 undecidable manual P 24 21.0678 116 -0.17 71
IV.ASSB.HHZ. 2023-05-27T14:59:42.48 0.3 undecidable manual S 178 8.7801 140 -0.18 73
IV.MURB.HHZ. 2023-05-27T14:59:42.25 0.1 undecidable manual P 326 18.9699 119 -0.01 98
IV.ATCC.EHZ. 2023-05-27T14:59:40.60 0.1 undecidable manual P 350 7.1928 146 0.13 98
IV.ASSB.HHZ. 2023-05-27T14:59:40.68 0.1 undecidable manual P 178 8.7801 140 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:1.8 0.000832 0.64 AML other m 2023-05-27T14:59:42.51
IV.ASSB.HHE. ML:1.7 0.000735 0.1 AML other m 2023-05-27T14:59:42.72
IV.MURB.HNN. ML:2.0 0.0008445 0.42 AML other m 2023-05-27T14:59:45.68
IV.FOSV.EHN. ML:1.6 0.0002505 0.36 AML other m 2023-05-27T14:59:46.30
IV.FOSV.HNN. ML:1.6 0.00026049999999999994 0.36 AML other m 2023-05-27T14:59:46.30
IV.FOSV.EHE. ML:1.8 0.0004325 0.18 AML other m 2023-05-27T14:59:46.09
IV.FOSV.HNE. ML:1.8 0.00042449999999999996 0.18 AML other m 2023-05-27T14:59:46.09
IV.MURB.HHE. ML:2.1 0.00106 0.2 AML other m 2023-05-27T14:59:46.59
IV.MURB.HHN. ML:2.1 0.001089 0.18 AML other m 2023-05-27T14:59:46.67
IV.MURB.HNE. ML:2.1 0.00099 0.2 AML other m 2023-05-27T14:59:46.60
IV.CESI.HHE. ML:1.1 0.000076 0.94 AML other m 2023-05-27T14:59:47.06
IV.CESI.HHN. ML:1.1 0.00007519999999999998 0.32 AML other m 2023-05-27T14:59:47.70
IV.SNTG.HHE. ML:1.6 0.000188 0.14 AML other m 2023-05-27T14:59:47.81
IV.ATFO.HHN. ML:1.6 0.000188 0.22 AML other m 2023-05-27T14:59:48.22
IV.ATFO.HHE. ML:1.4 0.0001445 1.3 AML other m 2023-05-27T14:59:49.65
IV.SNTG.HHN. ML:1.4 0.0001275 0.12 AML other m 2023-05-27T14:59:49.81
IV.FDMO.HHN. ML:1.0 0.00004105 0.82 AML other m 2023-05-27T14:59:50.81
IV.FDMO.HHE. ML:1.2 0.0000551 0.16 AML other m 2023-05-27T14:59:50.58
IV.SSFR.HHE. ML:1.7 0.00019350000000000001 0.88 AML other m 2023-05-27T14:59:50.68
IV.SSFR.HHN. ML:1.7 0.000195 0.14 AML other m 2023-05-27T14:59:51.13
IV.ATPI.EHN. ML:1.1 0.00003825 1.76 AML other m 2023-05-27T14:59:51.88
IV.ATMI.HHE. ML:1.4 0.000101 0.22 AML other m 2023-05-27T14:59:52.30
IV.ATMI.HHN. ML:1.3 0.0000653 0.58 AML other m 2023-05-27T14:59:52.43
IV.ATPI.EHE. ML:1.0 0.000036200000000000006 0.74 AML other m 2023-05-27T14:59:53.46
IV.NRCA.HHN. ML:1.6 0.00010089999999999999 0.2 AML other m 2023-05-27T14:59:54.16
IV.PIEI.HHN. ML:1.3 0.0000547 0.18 AML other m 2023-05-27T14:59:54.67
IV.PIEI.HHE. ML:1.5 0.00008715 0.22 AML other m 2023-05-27T14:59:54.72
IV.MGAB.HHE. ML:1.1 0.0000371 0.76 AML other m 2023-05-27T14:59:55.38
IV.MGAB.HHN. ML:1.3 0.00005535 0.78 AML other m 2023-05-27T14:59:55.48
IV.NRCA.HHE. ML:1.6 0.00009765 1 AML other m 2023-05-27T14:59:55.86
IV.ATCC.HNE. ML:1.9 0.0011256689500000001 0.0896 AML other m 2023-05-27T14:59:42.69
IV.ATCC.HNN. ML:2.0 0.0016093779 0.128 AML other m 2023-05-27T14:59:42.50
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