Earthquake with magnitude of ML 0.4 on date 30-06-2023 and time 04:28:02 (UTC) in region 2 km S Bolognola (MC)

A magnitude ML 0.4 earthquake occured in region: 2 km S Bolognola (MC), on

  • 30-06-2023 04:28:02 (UTC)
  • 30-06-2023 06:28:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9820, 13.2250 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
Bolognola MC 2 142 142
Acquacanina MC 7 121 263
Ussita MC 8 444 707
Fiastra MC 8 559 1266
Sarnano MC 9 3264 4530
Montefortino FM 10 1178 5708
Amandola FM 11 3629 9337
Castelsantangelo sul Nera MC 11 281 9618
Montemonaco AP 12 604 10222
Visso MC 12 1107 11329
Fiordimonte MC 13 202 11531
Gualdo MC 13 815 12346
Pievebovigliana MC 15 866 13212
Cessapalombo MC 15 512 13724
Comunanza AP 16 3166 16890
Pieve Torina MC 16 1458 18348
San Ginesio MC 16 3498 21846
Camporotondo di Fiastrone MC 17 563 22409
Caldarola MC 18 1823 24232
Montegallo AP 18 523 24755
Monte Cavallo MC 18 145 24900
Smerillo FM 18 365 25265
Penna San Giovanni MC 18 1108 26373
Monte San Martino MC 18 765 27138
Muccia MC 19 915 28053
Preci PG 19 724 28777
Montefalcone Appennino FM 19 424 29201
Sant'Angelo in Pontano MC 19 1436 30637

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Foligno (57155 inhabitants)
53 Km NW of Teramo (54892 inhabitants)
66 Km NE of Terni (111501 inhabitants)
69 Km E of Perugia (166134 inhabitants)
71 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)
99 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 0.4 2023-06-30
04:28:02
42.9815 13.2252 9 2023-06-30
04:38:20
Sala Sismica INGV-Roma 118823431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-06-30 04:28:02 ± 0.09
Latitude 42.9815 ± 0.0009
Longitude 13.2252 ± 0.0025
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 118823431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 198
Semi-minor axis of confidence ellipse (meter) 88
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 251
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.05
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.16907
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.5
Num. used stations 10
Type of magnitude ML
Reference to an origin 118823431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-06-30 04:38:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LPDG.HHZ. 2023-06-30T04:29:42.25 3.0 undecidable manual Pn 0.59 0
IV.EPOZ.HHZ. 2023-06-30T04:29:31.70 3.0 negative manual Pg 18.92 0
mn.BZS.HHZ. 2023-06-30T04:29:23.06 3.0 undecidable manual Pn -2.41 0
4P.IT08A.HHZ. 2023-06-30T04:29:02.06 3.0 undecidable manual Sg 0.45 0
GU.BURY.HHZ. 2023-06-30T04:28:57.51 3.0 positive manual Pn -5.61 0
IV.CTI.HHZ. 2023-06-30T04:28:52.79 3.0 undecidable manual Pg 5.35 0
OX.ACOM.HHZ. 2023-06-30T04:28:50.46 3.0 positive manual Pg 0.96 0
IV.MCRV.HHZ. 2023-06-30T04:28:45.68 3.0 undecidable manual Pg 13.81 0
CR.STON.BHZ. 2023-06-30T04:28:38.66 3.0 positive manual Pn -0.24 0
IV.NRCA.HHZ. 2023-06-30T04:28:09.72 0.6 undecidable manual S 209 18.7701 116 -0.06 50
IV.FDMO.HHZ. 2023-06-30T04:28:08.00 0.6 undecidable manual S 299 12.7761 125 0.01 51
IV.CSP1.EHZ. 2023-06-30T04:28:07.84 0.6 undecidable manual S 352 12.3765 126 -0.04 50
IV.MMO1.EHZ. 2023-06-30T04:28:07.93 0.6 undecidable manual S 138 12.2766 126 0.06 50
IV.NRCA.HHZ. 2023-06-30T04:28:06.75 0.1 negative manual P 209 18.7701 116 0.02 100
IV.FDMO.HHZ. 2023-06-30T04:28:05.75 0.6 undecidable manual P 299 12.7761 125 0.05 50
IV.CSP1.EHZ. 2023-06-30T04:28:05.63 1.0 undecidable manual P 352 12.3765 126 0 25
IV.MMO1.EHZ. 2023-06-30T04:28:05.55 0.6 undecidable manual P 138 12.2766 126 -0.07 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.1 0.000014040000000000001 0.12 AML other m 2023-06-30T04:28:08.17
IV.MMO1.EHN. ML:0.1 0.000017114999999999998 1.52 AML other m 2023-06-30T04:28:08.98
IV.FDMO.HHE. ML:0.0 0.0000109 0.16 AML other m 2023-06-30T04:28:08.32
IV.CSP1.EHN. ML:0.6 0.00004910000000000001 1.46 AML other m 2023-06-30T04:28:08.96
IV.MMO1.EHE. ML:-0.1 0.00001248 1.68 AML other m 2023-06-30T04:28:08.13
IV.NRCA.HHN. ML:0.5 0.0000241 0.46 AML other m 2023-06-30T04:28:09.95
IV.NRCA.HHE. ML:0.5 0.0000241 0.08 AML other m 2023-06-30T04:28:10.43
IV.CSP1.EHE. ML:0.4 0.0000324 1.2 AML other m 2023-06-30T04:28:10.13
CR.STON.BHN. ML:2.9 0.0000634 0.24 AML other m 2023-06-30T04:28:45.41
CR.STON.BHE. ML:2.7 0.000039149999999999996 0.24 AML other m 2023-06-30T04:28:45.41
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