Earthquake with magnitude of ML 0.3 on date 02-09-2023 and time 23:20:12 (UTC) in region 3 km SW Castelsantangelo sul Nera (MC)

A magnitude ML 0.3 earthquake occured in region: 3 km SW Castelsantangelo sul Nera (MC), on

  • 02-09-2023 23:20:12 (UTC)
  • 03-09-2023 01:20:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8670, 13.1360 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
Castelsantangelo sul Nera MC 4 281 281
Preci PG 8 724 1005
Visso MC 8 1107 2112
Ussita MC 9 444 2556
Norcia PG 9 4957 7513
Montemonaco AP 16 604 8117
Bolognola MC 16 142 8259
Montegallo AP 16 523 8782
Arquata del Tronto AP 17 1178 9960
Sellano PG 17 1079 11039
Monte Cavallo MC 18 145 11184
Acquacanina MC 19 121 11305
Cerreto di Spoleto PG 19 1075 12380
Montefortino FM 19 1178 13558
Fiastra MC 19 559 14117
Cascia PG 19 3217 17334
Fiordimonte MC 19 202 17536

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
52 Km W of Teramo (54892 inhabitants)
52 Km NE of Terni (111501 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
66 Km E of Perugia (166134 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
98 Km NE of Viterbo (67173 inhabitants)
99 Km W of Pescara (121014 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 0.3 2023-09-02
23:20:12
42.8672 13.1362 9 2023-09-02
23:28:43
Sala Sismica INGV-Roma 120699801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-02 23:20:12 ± 0.07
Latitude 42.8672 ± 0.0018
Longitude 13.1362 ± 0.0049
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120699801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 302
Semi-minor axis of confidence ellipse (meter) 242
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 263
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42088
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 120699801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-02 23:28:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HPAC.HHZ. 2023-09-02T23:21:58.99 3.0 undecidable manual Pg 12.62 0
IV.CDRU.HHZ. 2023-09-02T23:21:31.14 3.0 undecidable manual Sn -3.93 0
IV.MCRV.HHZ. 2023-09-02T23:21:28.99 3.0 undecidable manual Sn 1.23 0
GU.MGRO.HHZ. 2023-09-02T23:21:27.84 3.0 undecidable manual Pg 13.19 0
IY.CIRK.HHZ.00 2023-09-02T23:21:26.83 3.0 negative manual Pn 4.47 0
IV.MRB1.HHZ. 2023-09-02T23:21:14.96 3.0 undecidable manual Sn -3.91 0
SI.BOSI.HHZ. 2023-09-02T23:21:10.74 3.0 negative manual Pn -1.14 0
IV.MRB1.HHZ. 2023-09-02T23:20:50.64 3.0 undecidable manual Pg 0.61 0
IV.CSP1.EHZ. 2023-09-02T23:20:22.25 0.1 undecidable manual S 13 25.5522 109 -0.1 97
IV.TERO.HHZ. 2023-09-02T23:20:21.76 0.1 undecidable manual P 125 46.7199 50 -0.14 92
IV.FDMO.HHZ. 2023-09-02T23:20:20.33 0.1 undecidable manual S 348 19.1697 115 0.03 99
IV.SMA1.EHZ. 2023-09-02T23:20:19.48 0.1 undecidable manual P 148 30.8469 106 0.08 96
IV.MMO1.EHZ. 2023-09-02T23:20:19.22 0.1 undecidable manual S 77 15.873 119 -0.06 99
IV.CSP1.EHZ. 2023-09-02T23:20:18.31 0.1 undecidable manual P 13 25.5522 109 -0.08 97
IV.GUMA.HHZ. 2023-09-02T23:20:18.86 0.1 undecidable manual P 37 27.0507 108 0.19 95
IV.FDMO.HHZ. 2023-09-02T23:20:17.23 0.1 undecidable manual P 348 19.1697 115 0.02 99
IV.NRCA.HHZ. 2023-09-02T23:20:16.21 0.1 undecidable manual S 206 4.0959 155 -0.12 100
IV.MMO1.EHZ. 2023-09-02T23:20:16.71 0.1 undecidable manual P 77 15.873 119 0.1 98
IV.NRCA.HHZ. 2023-09-02T23:20:15.03 0.1 undecidable manual P 206 4.0959 155 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MMO1.EHN. ML:0.2 0.000017315 0.72 AML other m 2023-09-02T23:20:19.46
IV.MMO1.EHE. ML:0.3 0.00001879 0.52 AML other m 2023-09-02T23:20:20.44
IV.FDMO.HHE. ML:0.3 0.0000131 0.76 AML other m 2023-09-02T23:20:20.10
IV.FDMO.HHN. ML:0.3 0.00001365 0.28 AML other m 2023-09-02T23:20:20.52
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