Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 11-07-2023 and time 03:54:30 (UTC) in region 2 km SW Bolognola (MC)

A magnitude ML 1.3 earthquake occured in region: 2 km SW Bolognola (MC), on

  • 11-07-2023 03:54:30 (UTC)
  • 11-07-2023 05:54:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9810, 13.2130 at 11 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Bolognola MC 2 142 142
Acquacanina MC 6 121 263
Ussita MC 7 444 707
Fiastra MC 8 559 1266
Sarnano MC 10 3264 4530
Castelsantangelo sul Nera MC 11 281 4811
Montefortino FM 11 1178 5989
Visso MC 12 1107 7096
Amandola FM 12 3629 10725
Fiordimonte MC 12 202 10927
Montemonaco AP 13 604 11531
Pievebovigliana MC 14 866 12397
Gualdo MC 14 815 13212
Cessapalombo MC 15 512 13724
Pieve Torina MC 15 1458 15182
Comunanza AP 17 3166 18348
San Ginesio MC 17 3498 21846
Monte Cavallo MC 17 145 21991
Camporotondo di Fiastrone MC 17 563 22554
Caldarola MC 18 1823 24377
Muccia MC 18 915 25292
Preci PG 18 724 26016
Montegallo AP 18 523 26539
Smerillo FM 19 365 26904
Penna San Giovanni MC 19 1108 28012
Monte San Martino MC 19 765 28777
Sant'Angelo in Pontano MC 20 1436 30213

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
66 Km NE of Terni (111501 inhabitants)
68 Km E of Perugia (166134 inhabitants)
72 Km N of L'Aquila (69753 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
92 Km NW of Montesilvano (53738 inhabitants)
97 Km S of Fano (60888 inhabitants)
100 Km NW 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 1.3 2023-07-11
03:54:30		 42.9808 13.2132 11 2023-07-11
03:59:33		 Sala Sismica INGV-Roma 119156261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-11 03:54:30 ± 0.18
Latitude 42.9808 ± 0.0036
Longitude 13.2132 ± 0.0049
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119156261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 419
Semi-minor axis of confidence ellipse (meter) 58
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 120
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18076
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 119156261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-11 03:59:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2023-07-11T03:54:56.73 3.0 undecidable manual S -0.09 0
IV.FRON.EHZ. 2023-07-11T03:54:52.88 3.0 undecidable manual S -0.72 0
IV.SSFR.HHZ. 2023-07-11T03:54:50.65 3.0 undecidable manual S -0.01 0
IV.ARVD.HHZ. 2023-07-11T03:54:50.24 3.0 undecidable manual S -0.44 0
IV.MURB.HHZ. 2023-07-11T03:54:41.93 3.0 positive manual P 0.02 0
IV.RM33.EHZ. 2023-07-11T03:54:39.79 3.0 undecidable manual P 0.16 0
IV.TERO.HHZ. 2023-07-11T03:54:39.36 3.0 positive manual P -0.06 0
IV.ASSB.HHZ. 2023-07-11T03:54:38.89 3.0 undecidable manual P 0.05 0
IV.MF5.EHZ. 2023-07-11T03:54:38.50 0.6 undecidable manual S 88 20.0688 118 0.23 47
IV.CING.HHZ. 2023-07-11T03:54:38.31 3.0 positive manual P -0.36 0
IV.NRCA.HHZ. 2023-07-11T03:54:37.57 0.6 undecidable manual S 206 18.1707 120 -0.14 49
IV.SMA1.EHZ. 2023-07-11T03:54:37.81 3.0 negative manual P 0.15 0
IV.GUMA.HHZ. 2023-07-11T03:54:36.42 0.6 undecidable manual S 47 13.4754 128 0.08 50
IV.FDMO.HHZ. 2023-07-11T03:54:35.89 0.6 undecidable manual S 301 11.9769 131 -0.05 50
IV.CESI.HHZ. 2023-07-11T03:54:35.37 3.0 undecidable manual P -0.31 0
IV.MC2.EHZ. 2023-07-11T03:54:35.30 0.6 undecidable manual S 194 7.9809 143 0.31 48
IV.MMO1.EHZ. 2023-07-11T03:54:35.75 0.6 undecidable manual S 134 12.876 129 -0.45 46
IV.CSP1.EHZ. 2023-07-11T03:54:35.75 0.6 undecidable manual S 357 12.3765 131 -0.29 48
IV.NRCA.HHZ. 2023-07-11T03:54:34.52 0.1 undecidable manual P 206 18.1707 120 -0.11 98
IV.MF5.EHZ. 2023-07-11T03:54:34.96 0.1 undecidable manual P 88 20.0688 118 0.01 99
IV.MMO1.EHZ. 2023-07-11T03:54:33.52 1.0 undecidable manual P 134 12.876 129 -0.23 24
IV.CSP1.EHZ. 2023-07-11T03:54:33.60 0.1 undecidable manual P 357 12.3765 131 -0.06 100
IV.GUMA.HHZ. 2023-07-11T03:54:33.87 0.1 positive manual P 47 13.4754 128 0.04 100
IV.FDMO.HHZ. 2023-07-11T03:54:33.72 0.1 undecidable manual P 301 11.9769 131 0.12 99
IV.MC2.EHZ. 2023-07-11T03:54:33.25 0.1 negative manual P 194 7.9809 143 0.19 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MC2.EHE. ML:1.8 0.0009815 0.64 AML other m 2023-07-11T03:54:35.34
IV.MC2.EHN. ML:1.9 0.0010745 0.24 AML other m 2023-07-11T03:54:35.54
IV.CSP1.EHN. ML:1.9 0.0008895 1.82 AML other m 2023-07-11T03:54:35.91
IV.CSP1.EHE. ML:1.9 0.0008179999999999999 1.86 AML other m 2023-07-11T03:54:36.05
IV.MMO1.EHE. ML:1.5 0.00032700000000000003 1.48 AML other m 2023-07-11T03:54:36.81
IV.FDMO.HHN. ML:1.3 0.0002385 0.12 AML other m 2023-07-11T03:54:36.09
IV.MMO1.EHN. ML:1.7 0.000532 1.02 AML other m 2023-07-11T03:54:36.75
IV.FDMO.HHE. ML:1.1 0.000152 0.12 AML other m 2023-07-11T03:54:36.31
IV.NRCA.HNN. ML:1.9 0.000604 0.16 AML other m 2023-07-11T03:54:37.67
IV.NRCA.HHN. ML:1.9 0.0006255 0.16 AML other m 2023-07-11T03:54:37.67
IV.NRCA.HHE. ML:1.8 0.0005 1.34 AML other m 2023-07-11T03:54:38.69
IV.MF5.EHN. ML:1.3 0.00014915 0.16 AML other m 2023-07-11T03:54:38.67
IV.NRCA.HNE. ML:1.8 0.000465 0.12 AML other m 2023-07-11T03:54:38.88
IV.MF5.EHE. ML:1.2 0.00011485 0.62 AML other m 2023-07-11T03:54:39.31
IV.CESI.HHN. ML:1.2 0.00010005 0.3 AML other m 2023-07-11T03:54:40.08
IV.CESI.HHE. ML:1.0 0.000060950000000000004 0.64 AML other m 2023-07-11T03:54:40.61
IV.SMA1.EHN. ML:1.1 0.000039099999999999995 0.92 AML other m 2023-07-11T03:54:45.56
IV.ASSB.HHN. ML:1.4 0.0000642 0.12 AML other m 2023-07-11T03:54:45.73
IV.CING.HHE. ML:1.2 0.00004835 0.46 AML other m 2023-07-11T03:54:45.63
IV.CING.HHN. ML:1.2 0.0000537 0.98 AML other m 2023-07-11T03:54:45.41
IV.ASSB.HHE. ML:1.4 0.00006570000000000001 0.32 AML other m 2023-07-11T03:54:45.81
IV.SMA1.EHE. ML:1.2 0.00004855 1.42 AML other m 2023-07-11T03:54:47.80
IV.RM33.EHN. ML:1.2 0.00003295 0.12 AML other m 2023-07-11T03:54:48.35
IV.TERO.HHE. ML:1.1 0.000028400000000000003 0.78 AML other m 2023-07-11T03:54:48.81
IV.TERO.HHN. ML:1.1 0.000033299999999999996 0.98 AML other m 2023-07-11T03:54:48.50
IV.SSFR.HHE. ML:1.4 0.000047850000000000004 0.22 AML other m 2023-07-11T03:54:50.96
IV.SSFR.HHN. ML:1.4 0.0000483 0.42 AML other m 2023-07-11T03:54:51.04
IV.RM33.EHE. ML:0.9 0.00002245 0.44 AML other m 2023-07-11T03:54:51.60
IV.MURB.HHE. ML:1.5 0.00006055 0.24 AML other m 2023-07-11T03:54:52.50
IV.MURB.HHN. ML:1.3 0.000037500000000000003 0.18 AML other m 2023-07-11T03:54:53.41
IV.FRON.EHE. ML:1.1 0.00001815 0.42 AML other m 2023-07-11T03:54:53.75
IV.FRON.EHN. ML:1.2 0.00002465 0.42 AML other m 2023-07-11T03:54:53.83
IV.PIEI.HHN. ML:0.9 0.000010450000000000002 0.42 AML other m 2023-07-11T03:54:56.81
IV.PIEI.HHE. ML:1.1 0.00001285 0.52 AML other m 2023-07-11T03:54:57.50
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