Earthquake with magnitude of ML 0.9 on date 01-10-2023 and time 16:55:13 (UTC) in region 2 km NE Sefro (MC)

A magnitude ML 0.9 earthquake occured in region: 2 km NE Sefro (MC), on

  • 01-10-2023 16:55:13 (UTC)
  • 01-10-2023 18:55:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1630, 12.9670 at 15 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
Sefro MC 2 422 422
Pioraco MC 2 1134 1556
Fiuminata MC 4 1402 2958
Camerino MC 9 6974 9932
Castelraimondo MC 9 4587 14519
Serravalle di Chienti MC 10 1070 15589
Esanatoglia MC 10 2034 17623
Muccia MC 11 915 18538
Matelica MC 11 9981 28519
Gagliole MC 12 620 29139
Pieve Torina MC 15 1458 30597
Pievebovigliana MC 15 866 31463
Nocera Umbra PG 15 5839 37302
Gualdo Tadino PG 17 15208 52510
Fiordimonte MC 17 202 52712
Cerreto d'Esi AN 18 3817 56529
Serrapetrona MC 18 966 57495
San Severino Marche MC 19 12726 70221
Monte Cavallo MC 19 145 70366
Fabriano AN 20 31480 101846

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NE of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
68 Km SW of Ancona (100861 inhabitants)
72 Km NE of Terni (111501 inhabitants)
76 Km S of Fano (60888 inhabitants)
82 Km NW of Teramo (54892 inhabitants)
83 Km S of Pesaro (94582 inhabitants)
94 Km E of Arezzo (99543 inhabitants)
97 Km NW of L'Aquila (69753 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 0.9 2023-10-01
16:55:13
43.1628 12.9672 15 2023-10-01
17:01:58
Sala Sismica INGV-Roma 121651131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-01 16:55:13 ± 0.2
Latitude 43.1628 ± 0.0054
Longitude 12.9672 ± 0.0099
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121651131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 796
Semi-minor axis of confidence ellipse (meter) 326
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 800.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 172
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18706
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 121651131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-01 17:01:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SPS2.HHZ. 2023-10-01T16:56:35.57 3.0 positive manual Pg 17.950001 0
IV.MRB1.HHZ. 2023-10-01T16:56:17.79 3.0 undecidable manual Sn -2.48 0
GU.RORO.HHZ. 2023-10-01T16:56:11.98 3.0 undecidable manual Pg 11.34 0
GU.MGRO.HNZ. 2023-10-01T16:56:03.92 3.0 undecidable manual Pn 0.97 0
IV.GIUL.HHZ. 2023-10-01T16:55:58.95 3.0 undecidable manual Sn 2.05 0
OX.MARN.HHZ. 2023-10-01T16:55:55.75 3.0 undecidable manual Pg 6.98 0
IV.PTQR.HHZ. 2023-10-01T16:55:33.11 3.0 undecidable manual Pg 3.11 0
IV.CSP1.EHZ. 2023-10-01T16:55:21.76 0.3 undecidable manual S 112 20.7681 113 -0.05 75
IV.FDMO.HHZ. 2023-10-01T16:55:20.81 0.3 undecidable manual S 145 17.0718 119 -0.11 74
IV.SNTG.HHZ. 2023-10-01T16:55:19.59 0.6 undecidable manual S 348 10.4784 137 0.06 50
IV.CSP1.EHZ. 2023-10-01T16:55:18.67 1.0 undecidable manual P 112 20.7681 113 0.34 23
IV.CRE.HHZ. 2023-10-01T16:55:18.69 3.0 negative manual P -3.61 0
IV.MML1.EHZ. 2023-10-01T16:55:18.79 0.6 undecidable manual S 176 5.4945 156 -0.01 51
IV.FDMO.HHZ. 2023-10-01T16:55:17.92 1.0 undecidable manual P 145 17.0718 119 0.11 25
IV.MML1.EHZ. 2023-10-01T16:55:16.91 1.0 positive manual P 176 5.4945 156 0.32 24
IV.SNTG.HHZ. 2023-10-01T16:55:16.90 0.1 undecidable manual P 348 10.4784 137 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHN. ML:0.3 0.000020900000000000003 1.62 AML other m 2023-10-01T16:55:18.07
IV.MML1.EHE. ML:0.3 0.0000189932045 0.0896 AML other m 2023-10-01T16:55:19.08
IV.MURB.HHE. ML:1.4 0.000078385605 0.0512 AML other m 2023-10-01T16:55:22.53
IV.MURB.HHN. ML:1.1 0.000042858995 0.0512 AML other m 2023-10-01T16:55:22.65
IV.MURB.HNE. ML:1.4 0.00009844787 0.4608 AML other m 2023-10-01T16:55:22.04
IV.MURB.HNN. ML:1.6 0.00015018884999999998 0.896 AML other m 2023-10-01T16:55:15.48
IV.MML1.HNE. ML:0.9 0.000084343165 0.7936 AML other m 2023-10-01T16:55:23.11
IV.MML1.HNN. ML:0.8 0.00006841502500000001 0.7552 AML other m 2023-10-01T16:55:24.88
IV.CSP1.EHE. ML:0.7 0.000031963075 0.6272 AML other m 2023-10-01T16:55:24.15
IV.CSP1.EHN. ML:0.5 0.0000195876015 47.0144 AML other m 2023-10-01T16:55:18.39
IV.CRE.HHE. ML:0.7 0.0000071564695 0.1024 AML other m 2023-10-01T16:55:23.17
IV.CRE.HHN. ML:1.2 0.000014778694 0.0896 AML other m 2023-10-01T16:55:23.05
IV.PTQR.HHE. ML:0.9 0.0000059440495 0.2944 AML other m 2023-10-01T16:56:03.73
IV.PTQR.HHN. ML:1.2 0.000007613596 0.2432 AML other m 2023-10-01T16:56:06.55
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