Earthquake with magnitude of Md 1.7 on date 23-05-2023 and time 10:06:35 (UTC) in region 4 km S Preci (PG)

A magnitude Md 1.7 earthquake occured in region: 4 km S Preci (PG), on

  • 23-05-2023 10:06:35 (UTC)
  • 23-05-2023 12:06:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8470, 13.0340 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.

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
Norcia PG 8 4957 5681
Sellano PG 10 1079 6760
Cerreto di Spoleto PG 10 1075 7835
Visso MC 11 1107 8942
Castelsantangelo sul Nera MC 11 281 9223
Ussita MC 14 444 9667
Cascia PG 14 3217 12884
Vallo di Nera PG 16 364 13248
Monte Cavallo MC 17 145 13393
Poggiodomo PG 17 117 13510

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
59 Km W of Teramo (54892 inhabitants)
60 Km E of Perugia (166134 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
97 Km N of Guidonia Montecelio (88673 inhabitants)
98 Km W of Montesilvano (53738 inhabitants)
100 Km N of Tivoli (56533 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 1.7 2023-05-23
10:06:35
42.8467 13.0343 10 2023-05-23
10:28:37
Sala Sismica INGV-Roma 117625461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-23 10:06:35 ± 0.11
Latitude 42.8467 ± 0.0054
Longitude 13.0343 ± 0.0074
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117625461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 662
Semi-minor axis of confidence ellipse (meter) 467
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 47
Circular confidence region, given by single value of horizontal uncertainty (meter) 660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 203
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
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 24
Number of stations from which data was used for origin computation 5
Magnitude information

Md:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 2
Type of magnitude Md
Reference to an origin 117625461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-23 10:28:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
RF.GEPF.HHZ. 2023-05-23T10:07:07.62 3.0 positive manual Pn -3.19 0
GU.MGRO.HHZ. 2023-05-23T10:07:06.12 3.0 undecidable manual Pn -6.05 0
IV.IMOL.HNZ. 2023-05-23T10:07:05.78 3.0 negative manual Pg 14.35 0
IV.LINA.HHZ. 2023-05-23T10:06:53.37 3.0 undecidable manual Sn 2.44 0
IV.ASSB.HHZ. 2023-05-23T10:06:47.99 0.6 undecidable manual S 306 37.4292 50 -0.07 48
IV.CSP1.EHZ. 2023-05-23T10:06:46.11 0.6 undecidable manual S 27 30.5472 50 -0.1 48
IV.CESI.HHZ. 2023-05-23T10:06:43.29 0.6 undecidable manual S 329 20.4684 116 0.01 50
IV.FDMO.HHZ. 2023-05-23T10:06:43.49 0.3 undecidable manual S 12 21.4674 115 -0.11 73
IV.ASSB.HHZ. 2023-05-23T10:06:42.48 0.3 undecidable manual P 306 37.4292 50 -0.21 69
IV.CSP1.EHZ. 2023-05-23T10:06:41.98 0.6 undecidable manual P 27 30.5472 50 0.35 45
OT.OT15.EHZ. 2023-05-23T10:06:41.73 3.0 undecidable manual Sg 1.94 0
IV.CESI.HHZ. 2023-05-23T10:06:40.08 0.1 positive manual P 329 20.4684 116 0.15 97
IV.FDMO.HHZ. 2023-05-23T10:06:40.14 0.1 undecidable manual P 12 21.4674 115 0.02 99
IV.NRCA.HHZ. 2023-05-23T10:06:39.37 0.3 undecidable manual S 103 6.6933 146 -0.17 74
IV.NRCA.HHZ. 2023-05-23T10:06:37.87 0.1 undecidable manual P 103 6.6933 146 0.09 100
IV.VAGA.HHZ. 2023-05-23T10:06:32.00 3.0 undecidable manual Sn -9.99 0
IX.MNT3.EHZ.02 2023-05-23T10:06:31.89 3.0 undecidable manual Sg -0.1 0
IV.ACER.HHZ. 2023-05-23T10:06:15.88 3.0 undecidable manual Sn -9.99 0
IV.CMPR.HHZ. 2023-05-23T10:06:10.15 3.0 undecidable manual Sn -9.99 0
IV.LINA.HHZ. 2023-05-23T10:06:08.11 3.0 positive manual Pn -0.36 0
GE.MATE.HHZ. 2023-05-23T10:06:06.17 3.0 positive manual Pg 9.59 0
IV.GIUL.HHZ. 2023-05-23T10:06:05.22 3.0 negative manual Pn -6.99 0
IV.PLAC.HNZ. 2023-05-23T10:06:02.40 3.0 undecidable manual Sg 1.27 0
IV.VTIR.HHZ. 2023-05-23T10:05:59.55 3.0 negative manual Pg 0.52 0
IY.CHCE.HHZ.00 2023-05-23T10:05:59.06 3.0 undecidable manual Sn -2.48 0
IV.TDS.HHZ. 2023-05-23T10:05:47.89 3.0 undecidable manual Pg 1.97 0
IV.SERS.HHZ. 2023-05-23T10:05:42.18 3.0 undecidable manual P -0.88 0
IV.ECTS.HHZ. 2023-05-23T10:05:40.14 3.0 undecidable manual P -0.73 0
IT.MLPS.HNZ. 2023-05-23T10:05:40.35 3.0 undecidable manual P 0.4 0
IV.MRCB.HHZ. 2023-05-23T10:05:38.44 3.0 positive manual P -0.8 0
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