Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 23-03-2023 and time 07:30:32 (UTC) in region 5 km SE Umbertide (PG)

A magnitude ML 1.3 earthquake occured in region: 5 km SE Umbertide (PG), on

  • 23-03-2023 07:30:32 (UTC)
  • 23-03-2023 08:30:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.2750, 12.3750 at 8 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Umbertide PG 5 16681 16681
Montone PG 11 1680 18361
Corciano PG 18 21332 39693
Perugia PG 19 166134 205827
Gubbio PG 19 32216 238043
Lisciano Niccone PG 19 613 238656
Pietralunga PG 19 2111 240767
Magione PG 20 14865 255632

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km N of Perugia (166134 inhabitants)
44 Km NW of Foligno (57155 inhabitants)
45 Km E of Arezzo (99543 inhabitants)
82 Km SW of Fano (60888 inhabitants)
82 Km N of Terni (111501 inhabitants)
83 Km SW of Pesaro (94582 inhabitants)
85 Km E of Siena (53903 inhabitants)
89 Km S of Rimini (147750 inhabitants)
97 Km S of Cesena (96758 inhabitants)
98 Km N of Viterbo (67173 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 1.3 2023-03-23
07:30:32		 43.2748 12.3748 8 2023-03-23
07:38:40		 Sala Sismica INGV-Roma 115658851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-23 07:30:32 ± 0.12
Latitude 43.2748 ± 0.0045
Longitude 12.3748 ± 0.0037
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 115658851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 490
Semi-minor axis of confidence ellipse (meter) 28
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 192
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 23
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33725
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 115658851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-23 07:38:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAMP.HHZ. 2023-03-23T07:30:54.52 3.0 undecidable manual P 1.82 0
IV.MML1.EHZ. 2023-03-23T07:30:49.14 3.0 undecidable manual S -0.05 0
IV.CAFI.HHZ. 2023-03-23T07:30:44.25 0.3 undecidable manual S 281 0.3022 103 0.07 71
IV.PIEI.HHZ. 2023-03-23T07:30:43.59 0.3 undecidable manual S 24 0.2851 103 0.04 72
IV.BADI.EHZ. 2023-03-23T07:30:42.31 0.3 undecidable manual S 338 0.2527 105 -0.04 73
IV.EL6.EHZ. 2023-03-23T07:30:42.72 3.0 positive manual P -0.23 0
IV.ATCC.EHZ. 2023-03-23T07:30:41.12 0.3 undecidable manual S 115 0.2131 108 0.26 70
IV.MGAB.HHZ. 2023-03-23T07:30:41.02 3.0 positive manual P -0.01 0
IV.ATPI.EHZ. 2023-03-23T07:30:39.71 0.3 undecidable manual S 6 0.1772 111 0.16 72
IV.CAFI.HHZ. 2023-03-23T07:30:39.23 0.1 undecidable manual P 281 0.3022 103 0.09 95
IV.SSFR.HHZ. 2023-03-23T07:30:39.24 0.6 positive manual P 61 0.3372 50 -0.66 41
IV.ATFO.HHZ. 2023-03-23T07:30:39.62 0.3 undecidable manual S 57 0.1700 112 0.32 70
IV.PIEI.HHZ. 2023-03-23T07:30:38.58 0.1 undecidable manual P 24 0.2851 103 -0.2 93
IV.BADI.EHZ. 2023-03-23T07:30:38.04 0.6 positive manual P 338 0.2527 105 -0.04 48
IV.ATVO.HHZ. 2023-03-23T07:30:37.54 0.6 undecidable manual S 12 0.1097 122 0.32 47
IV.MURB.HHZ. 2023-03-23T07:30:37.56 0.3 undecidable manual S 96 0.1097 122 0.35 70
IV.ATMI.HHZ. 2023-03-23T07:30:37.21 0.3 undecidable manual S 307 0.0980 125 0.38 70
IV.ATCC.EHZ. 2023-03-23T07:30:37.06 0.1 undecidable manual P 115 0.2131 108 -0.16 95
IV.ATFO.HHZ. 2023-03-23T07:30:36.31 1.0 negative manual P 57 0.1700 112 -0.01 25
IV.ATPI.EHZ. 2023-03-23T07:30:36.60 0.6 undecidable manual P 6 0.1772 111 0.14 48
IV.ATVO.HHZ. 2023-03-23T07:30:35.08 0.3 positive manual P 12 0.1097 122 -0.04 75
IV.ATVA.EHE. 2023-03-23T07:30:35.61 0.3 undecidable manual S 273 0.0657 136 -0.26 72
IV.MURB.HHZ. 2023-03-23T07:30:35.13 0.1 positive manual P 96 0.1097 122 0.01 100
IV.UMBT.HGZ. 2023-03-23T07:30:35.35 3.0 undecidable manual S 0
IV.ATMI.HHZ. 2023-03-23T07:30:35.32 1.0 undecidable manual P 307 0.0980 125 0.42 23
IV.ATVA.EHE. 2023-03-23T07:30:34.40 0.1 undecidable manual P 273 0.0657 136 0.06 100
IV.ATLO.EHE. 2023-03-23T07:30:34.78 0.1 undecidable manual S 30 0.0468 145 -0.64 87
IV.ATLO.EHE. 2023-03-23T07:30:33.91 0.1 undecidable manual P 30 0.0468 145 -0.17 98
IV.UMBT.HGZ. 2023-03-23T07:30:31.95 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHE. ML:1.0 0.0001285 0.52 AML other m 2023-03-23T07:30:37.55
IV.MURB.HHN. ML:2.0 0.001315 0.18 AML other m 2023-03-23T07:30:37.74
IV.MURB.HNN. ML:1.9 0.000978 0.2 AML other m 2023-03-23T07:30:37.73
IV.ATMI.HHN. ML:1.2 0.000211 1.42 AML other m 2023-03-23T07:30:37.98
IV.MURB.HHE. ML:1.8 0.00087 0.24 AML other m 2023-03-23T07:30:38.19
IV.MURB.HNE. ML:1.8 0.0007855 0.24 AML other m 2023-03-23T07:30:38.43
IV.ATMI.HHE. ML:1.3 0.000265 0.72 AML other m 2023-03-23T07:30:38.28
IV.ATVO.HHN. ML:1.0 0.00011504999999999999 0.46 AML other m 2023-03-23T07:30:39.06
IV.ATFO.HHE. ML:1.3 0.0001635 0.7 AML other m 2023-03-23T07:30:39.50
IV.ATFO.HHN. ML:1.2 0.000141 1.56 AML other m 2023-03-23T07:30:39.98
IV.ATCC.EHE. ML:1.6 0.000282 0.12 AML other m 2023-03-23T07:30:41.30
IV.ATCC.EHN. ML:1.3 0.0001185 0.7 AML other m 2023-03-23T07:30:41.46
IV.PIEI.HHN. ML:0.9 0.0000347 0.16 AML other m 2023-03-23T07:30:43.69
IV.PIEI.HHE. ML:1.2 0.00007655 0.76 AML other m 2023-03-23T07:30:43.56
IV.SSFR.HHN. ML:1.4 0.0000945 1.08 AML other m 2023-03-23T07:30:45.97
IV.SSFR.HHE. ML:1.1 0.00005115 0.6 AML other m 2023-03-23T07:30:46.46
IV.MGAB.HHN. ML:1.2 0.0000441 0.38 AML other m 2023-03-23T07:30:48.65
IV.MGAB.HHE. ML:1.1 0.0000423 1.46 AML other m 2023-03-23T07:30:49.76
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