Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 11-05-2023 and time 01:35:56 (Italy) in region 4 km NW Preci (PG)

A magnitude ML 1.2 earthquake occured in region: 4 km NW Preci (PG), on

  • 10-05-2023 23:35:56 (UTC)
  • 11-05-2023 01:35:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9090, 13.0080 at 11 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
Preci PG 4 724 724
Sellano PG 7 1079 1803
Visso MC 7 1107 2910
Monte Cavallo MC 10 145 3055
Ussita MC 11 444 3499
Castelsantangelo sul Nera MC 12 281 3780
Cerreto di Spoleto PG 12 1075 4855
Norcia PG 15 4957 9812
Pieve Torina MC 16 1458 11270
Fiordimonte MC 16 202 11472
Pievebovigliana MC 18 866 12338
Fiastra MC 19 559 12897
Serravalle di Chienti MC 19 1070 13967
Acquacanina MC 19 121 14088
Vallo di Nera PG 20 364 14452
Muccia MC 20 915 15367

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
55 Km E of Perugia (166134 inhabitants)
63 Km W of Teramo (54892 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
92 Km NE 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 1.2 2023-05-10
23:35:56		 42.9092 13.0085 11 2023-05-10
23:44:19		 Sala Sismica INGV-Roma 117233071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-10 23:35:56 ± 0.04
Latitude 42.9092 ± 0.0018
Longitude 13.0085 ± 0.0025
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 117233071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 249
Semi-minor axis of confidence ellipse (meter) 196
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28868
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 20
Type of magnitude ML
Reference to an origin 117233071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-10 23:44:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATFO.HHZ. 2023-05-10T23:36:08.22 3.0 undecidable manual P 0.13 0
IV.ASSB.HHZ. 2023-05-10T23:36:07.41 0.6 undecidable manual S 298 32.0457 90 0.04 50
7F.SIB2.EHN. 2023-05-10T23:36:05.17 0.6 undecidable manual S 95 24.0537 90 -0.07 49
IV.CSP1.EHZ. 2023-05-10T23:36:05.62 0.6 undecidable manual S 38 25.752 90 -0.08 49
IV.MMO1.EHZ. 2023-05-10T23:36:05.74 0.6 undecidable manual S 92 25.8519 90 0.01 50
IV.GAVE.EHE. 2023-05-10T23:36:05.45 0.6 undecidable manual S 201 25.752 90 -0.25 48
IV.CESI.HHZ. 2023-05-10T23:36:02.40 0.6 undecidable manual S 322 13.5753 98 -0.04 52
IV.FDMO.HHZ. 2023-05-10T23:36:02.89 0.6 undecidable manual S 24 15.4734 92 -0.07 51
IV.ASSB.HHZ. 2023-05-10T23:36:02.70 0.3 undecidable manual P 298 32.0457 90 -0.01 75
IV.MMO1.EHZ. 2023-05-10T23:36:01.87 0.6 positive manual P 92 25.8519 90 0.1 50
IV.GAVE.EHE. 2023-05-10T23:36:01.72 0.3 undecidable manual P 201 25.752 90 -0.04 75
7F.SIB2.EHN. 2023-05-10T23:36:01.47 0.3 undecidable manual P 95 24.0537 90 -0.02 75
IT.MTCL.HGN. 2023-05-10T23:36:01.12 0.6 undecidable manual S 356 9.4794 123 -0.3 50
IV.NRCA.HHZ. 2023-05-10T23:36:01.93 0.6 undecidable manual S 134 11.9769 109 -0.1 52
IV.CSP1.EHZ. 2023-05-10T23:36:01.79 1.0 undecidable manual P 38 25.752 90 0.04 25
IV.CESI.HHZ. 2023-05-10T23:36:00.04 0.3 negative manual P 322 13.5753 98 0.17 75
IV.FDMO.HHZ. 2023-05-10T23:36:00.30 1.0 undecidable manual P 24 15.4734 92 0.13 25
IT.MTCL.HGN. 2023-05-10T23:35:59.37 0.3 undecidable manual P 356 9.4794 123 0.09 76
IV.NRCA.HHZ. 2023-05-10T23:35:59.78 0.1 negative manual P 134 11.9769 109 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.0 0.00009779524000000001 0.1536 AML other m 2023-05-10T23:36:02.72
IV.NRCA.HHN. ML:1.0 0.00011350924999999999 0.1408 AML other m 2023-05-10T23:36:02.32
IV.FDMO.HHN. ML:1.0 0.00007928065500000001 0.1152 AML other m 2023-05-10T23:36:03.34
IV.FDMO.HHE. ML:1.1 0.0001095 0.16 AML other m 2023-05-10T23:36:03.08
IV.NRCA.HNE. ML:0.9 0.00008842312 0.1664 AML other m 2023-05-10T23:36:02.64
IV.NRCA.HNN. ML:1.2 0.00015857413 0.4992 AML other m 2023-05-10T23:36:04.59
IV.CESI.HHE. ML:0.7 0.0000425163515 0.0768 AML other m 2023-05-10T23:36:02.69
IV.CESI.HHN. ML:1.0 0.000092412775 0.3456 AML other m 2023-05-10T23:36:02.67
IV.CESI.HNE. ML:1.0 0.0000902197 0.64 AML other m 2023-05-10T23:36:00.66
IV.CESI.HNN. ML:1.2 0.00013934655000000002 0.2304 AML other m 2023-05-10T23:36:02.68
IV.CSP1.EHE. ML:1.3 0.00011670595 1.2416 AML other m 2023-05-10T23:36:14.98
IV.CSP1.EHN. ML:1.2 0.00010112252000000001 1.0368 AML other m 2023-05-10T23:36:03.88
IV.MMO1.EHE. ML:0.9 0.00004003236 44.2624 AML other m 2023-05-10T23:36:01.60
IV.MMO1.EHN. ML:0.9 0.000038174020000000006 43.9552 AML other m 2023-05-10T23:36:01.45
IV.MMO1.HNE. ML:3.0 0.005896039 0.6912 AML other m 2023-05-10T23:36:11.23
IV.MMO1.HNN. ML:2.9 0.0048539195 0.6656 AML other m 2023-05-10T23:36:10.30
IV.ATFO.HHE. ML:1.6 0.00007632361 1.9968 AML other m 2023-05-10T23:36:15.74
IV.ATFO.HHN. ML:1.7 0.00009620684 2.3808 AML other m 2023-05-10T23:36:29.66
IV.ATFO.HNE. ML:1.7 0.00010654537 0.7552 AML other m 2023-05-10T23:36:12.46
IV.ATFO.HNN. ML:1.8 0.00013901013500000002 1.0624 AML other m 2023-05-10T23:36:23.60
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