Earthquake with magnitude of ML 1.1 on date 28-09-2023 and time 16:25:28 (UTC) in region 4 km S Fiordimonte (MC)

A magnitude ML 1.1 earthquake occured in region: 4 km S Fiordimonte (MC), on

  • 28-09-2023 16:25:28 (UTC)
  • 28-09-2023 18:25:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0010, 13.0760 at 12 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 4 202 202
Pieve Torina MC 5 1458 1660
Monte Cavallo MC 6 145 1805
Pievebovigliana MC 7 866 2671
Fiastra MC 8 559 3230
Visso MC 8 1107 4337
Ussita MC 8 444 4781
Acquacanina MC 9 121 4902
Muccia MC 9 915 5817
Bolognola MC 12 142 5959
Serravalle di Chienti MC 13 1070 7029
Castelsantangelo sul Nera MC 13 281 7310
Preci PG 14 724 8034
Camerino MC 15 6974 15008
Sellano PG 17 1079 16087
Sarnano MC 19 3264 19351
Cessapalombo MC 19 512 19863
Sefro MC 19 422 20285
Caldarola MC 20 1823 22108

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Foligno (57155 inhabitants)
57 Km E of Perugia (166134 inhabitants)
60 Km NE of Terni (111501 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
94 Km S of Fano (60888 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 2023-09-28
16:25:28
43.0013 13.076 12 2023-09-28
16:38:34
Sala Sismica INGV-Roma 121546711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-28 16:25:28 ± 0.05
Latitude 43.0013 ± 0.0027
Longitude 13.0760 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121546711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 345
Semi-minor axis of confidence ellipse (meter) 232
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 27
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 21
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) 0.20954
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 121546711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-28 16:38:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.TAR1.HHZ. 2023-09-28T16:27:22.74 3.0 undecidable manual Sn 2.56 0
OX.AGOR.HHZ. 2023-09-28T16:27:15.08 3.0 undecidable manual Sg 7.25 0
OX.MPRI.HHZ. 2023-09-28T16:27:07.00 3.0 undecidable manual Sg 1.77 0
IV.EPZF.HHZ. 2023-09-28T16:27:05.38 3.0 negative manual Pg 16.6 0
IV.SPS2.HHZ. 2023-09-28T16:26:44.93 3.0 positive manual Pg 7.87 0
IV.ZCCA.HHZ. 2023-09-28T16:26:37.30 3.0 undecidable manual Sg 3.72 0
CR.ZAG.BHZ. 2023-09-28T16:26:30.44 3.0 negative manual Pg 3.29 0
IV.CTI.HHZ. 2023-09-28T16:26:25.59 3.0 undecidable manual Pg 3.14 0
ZO.PDN2.EHZ. 2023-09-28T16:26:12.56 3.0 positive manual Pn -5.96 0
IV.CSNT.HHZ. 2023-09-28T16:26:11.56 3.0 undecidable manual S -4.9 0
IV.PTRJ.HHZ. 2023-09-28T16:26:03.38 3.0 undecidable manual Pg 0.5 0
IV.MIDA.HHZ. 2023-09-28T16:25:59.07 3.0 undecidable manual Pg 0.94 0
IV.MMO1.EHZ. 2023-09-28T16:25:36.77 0.6 undecidable manual S 119 23.2545 92 -0.16 47
7F.SIB1.EHZ. 2023-09-28T16:25:36.00 0.6 undecidable manual S 127 19.6692 93 0.03 49
IV.NRCA.HHZ. 2023-09-28T16:25:35.45 0.6 undecidable manual S 171 18.87 94 -0.3 46
IV.PF6.EHE. 2023-09-28T16:25:35.34 0.6 undecidable manual S 32 17.871 95 -0.15 48
IV.MML1.EHZ. 2023-09-28T16:25:34.73 0.6 undecidable manual S 326 15.0738 100 0 49
IV.MC2.EHZ. 2023-09-28T16:25:34.51 0.6 undecidable manual S 137 13.5753 106 0.17 48
IV.CSP1.EHZ. 2023-09-28T16:25:34.66 0.6 undecidable manual S 46 14.4744 102 0.08 49
IV.CESI.HHZ. 2023-09-28T16:25:34.36 0.6 undecidable manual S 272 13.875 104 -0.08 49
IV.MMO1.EHZ. 2023-09-28T16:25:33.19 0.3 undecidable manual P 119 23.2545 92 -0.07 72
IV.PF6.EHE. 2023-09-28T16:25:32.39 0.1 undecidable manual P 32 17.871 95 -0.04 98
7F.SIB1.EHZ. 2023-09-28T16:25:32.75 0.1 undecidable manual P 127 19.6692 93 0.04 97
IV.FDMO.HHZ. 2023-09-28T16:25:32.28 0.6 undecidable manual S 13 3.996 155 -0.15 49
IT.MTCL.HGZ. 2023-09-28T16:25:32.56 0.6 undecidable manual S 262 6.2937 142 -0.19 48
IV.MML1.EHZ. 2023-09-28T16:25:32.16 0.6 negative manual P 326 15.0738 100 0.17 48
IV.MC2.EHZ. 2023-09-28T16:25:32.23 0.6 undecidable manual P 137 13.5753 106 0.46 45
IV.NRCA.HHZ. 2023-09-28T16:25:32.47 0.6 negative manual P 171 18.87 94 -0.11 48
IV.CESI.HHZ. 2023-09-28T16:25:31.93 0.6 positive manual P 272 13.875 104 0.11 49
IV.CSP1.EHZ. 2023-09-28T16:25:31.93 1.0 undecidable manual P 46 14.4744 102 0.02 25
IV.FEMA.HNZ. 2023-09-28T16:25:30.92 0.3 undecidable manual P 206 4.8951 150 0.2 72
IV.FDMO.HHZ. 2023-09-28T16:25:30.73 1.0 undecidable manual P 13 3.996 155 0.07 25
IT.MTCL.HGZ. 2023-09-28T16:25:30.83 0.1 undecidable manual P 262 6.2937 142 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.9 0.000132 0.2 AML other m 2023-09-28T16:25:32.59
IV.FDMO.HHN. ML:1.3 0.0002825 0.14 AML other m 2023-09-28T16:25:32.50
IV.NRCA.HHE. ML:0.7 0.00003395 0.16 AML other m 2023-09-28T16:25:35.57
IV.NRCA.HHN. ML:0.9 0.00005945 0.12 AML other m 2023-09-28T16:25:36.99
IV.FIAM.HHE. ML:1.8 0.00008690000000000001 0.6 AML other m 2023-09-28T16:26:08.77
IV.FIAM.HHN. ML:1.8 0.00009080000000000001 0.08 AML other m 2023-09-28T16:26:11.61
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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