Earthquake with magnitude of ML 1.1 on date 23-10-2023 and time 07:39:34 (Italy) in region 2 km SE Fiordimonte (MC)

A magnitude ML 1.1 earthquake occured in region: 2 km SE Fiordimonte (MC), on

  • 23-10-2023 05:39:34 (UTC)
  • 23-10-2023 07:39:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0190, 13.1030 at 4 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
Fiordimonte MC 2 202 202
Fiastra MC 5 559 761
Pieve Torina MC 5 1458 2219
Pievebovigliana MC 5 866 3085
Acquacanina MC 6 121 3206
Muccia MC 9 915 4121
Monte Cavallo MC 9 145 4266
Ussita MC 9 444 4710
Visso MC 10 1107 5817
Bolognola MC 11 142 5959
Camerino MC 13 6974 12933
Serravalle di Chienti MC 14 1070 14003
Castelsantangelo sul Nera MC 14 281 14284
Cessapalombo MC 16 512 14796
Sarnano MC 16 3264 18060
Preci PG 16 724 18784
Caldarola MC 17 1823 20607
Camporotondo di Fiastrone MC 18 563 21170
Sefro MC 19 422 21592
Serrapetrona MC 19 966 22558
Belforte del Chienti MC 20 1886 24444
Gualdo MC 20 815 25259

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
59 Km E of Perugia (166134 inhabitants)
63 Km NE of Terni (111501 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Fano (60888 inhabitants)
100 Km S of Pesaro (94582 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 1.1 2023-10-23
05:39:34
43.0192 13.103 5 2023-10-23
05:52:30
Sala Sismica INGV-Roma 122299321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-23 05:39:34 ± 0.21
Latitude 43.0192 ± 0.0063
Longitude 13.1030 ± 0.0098
Depth (km) 5 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 122299321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 899
Semi-minor axis of confidence ellipse (meter) 330
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 138
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.20325
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 122299321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-23 05:52:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AMUR.HHZ. 2023-10-23T05:40:59.50 3.0 undecidable manual Sn -4.31 0
GU.SATI.HHZ. 2023-10-23T05:40:59.13 3.0 undecidable manual Sn -0.7 0
IV.ALJA.HHZ. 2023-10-23T05:40:41.05 3.0 positive manual Pn 1.13 0
IV.GMB1.HHZ. 2023-10-23T05:40:37.00 3.0 positive manual Pn -3 0
IV.FVI.HHZ. 2023-10-23T05:40:32.16 3.0 undecidable manual Sn -0.95 0
IV.CET2.HHZ. 2023-10-23T05:40:26.05 3.0 undecidable manual Pn 1.67 0
IV.MGR.HNZ. 2023-10-23T05:40:14.46 3.0 undecidable manual Pn -1.04 0
IV.BADI.EHZ. 2023-10-23T05:40:05.04 3.0 undecidable manual Sg 9.03 0
CR.ZAG.BHZ. 2023-10-23T05:40:01.42 3.0 undecidable manual Pn 0.97 0
7F.SIB1.EHZ. 2023-10-23T05:39:41.37 0.6 undecidable manual S 135 19.3695 103 0.4 46
IV.NRCA.HHZ. 2023-10-23T05:39:41.65 0.6 undecidable manual S 177 20.6682 102 0.25 48
7F.SIB2.EHN. 2023-10-23T05:39:41.65 0.6 undecidable manual S 131 21.6672 102 -0.09 49
IV.MMO1.EHZ. 2023-10-23T05:39:41.80 0.6 undecidable manual S 126 22.5552 101 -0.25 48
IV.MC2.EHN. 2023-10-23T05:39:40.10 0.6 undecidable manual S 150 13.875 108 0.97 38
IV.MML1.EHZ. 2023-10-23T05:39:39.94 0.6 undecidable manual S 315 14.874 107 0.45 46
IV.CSNT.HHZ. 2023-10-23T05:39:39.38 3.0 positive manual Pn 0.36 0
IV.MMO1.EHZ. 2023-10-23T05:39:38.11 1.0 undecidable manual P 126 22.5552 101 -0.57 22
IV.CSP1.EHZ. 2023-10-23T05:39:38.79 0.6 undecidable manual S 46 11.5773 111 0.42 47
IV.NRCA.HHZ. 2023-10-23T05:39:38.25 0.1 undecidable manual P 177 20.6682 102 -0.05 99
7F.SIB2.EHN. 2023-10-23T05:39:38.16 0.1 undecidable manual P 131 21.6672 102 -0.34 93
IV.MC2.EHN. 2023-10-23T05:39:37.09 0.1 undecidable manual P 150 13.875 108 0.09 100
IV.MML1.EHZ. 2023-10-23T05:39:37.16 0.6 negative manual P 315 14.874 107 -0.04 50
7F.SIB1.EHZ. 2023-10-23T05:39:37.79 0.1 undecidable manual P 135 19.3695 103 -0.27 95
IV.PP3.EHZ. 2023-10-23T05:39:37.52 3.0 positive manual P 0.03 0
IV.CSP1.EHZ. 2023-10-23T05:39:36.73 0.6 positive manual P 46 11.5773 111 0.17 49
IV.SFI.EHZ. 2023-10-23T05:39:36.16 3.0 undecidable manual P 0 0
IV.FDMO.HHE. 2023-10-23T05:39:35.53 0.6 undecidable manual S 326 2.2977 153 -0.31 49
IV.FDMO.HHE. 2023-10-23T05:39:34.92 0.1 undecidable manual P 326 2.2977 153 -0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHE. ML:0.6 0.00006073024 0.2592 AML other m 2023-10-23T05:39:39.22
IV.CSP1.EHN. ML:0.8 0.00009079655 0.1792 AML other m 2023-10-23T05:39:38.97
IV.CSNT.HHE. ML:1.5 0.000014016033000000001 0.08 AML other m 2023-10-23T05:39:40.12
IV.CSNT.HHN. ML:1.3 0.0000097388815 0.4992 AML other m 2023-10-23T05:40:05.75
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