Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 18-04-2024 and time 21:50:15 (UTC) in region 3 km W Bolognola (MC)

A magnitude ML 0.7 earthquake occured in region: 3 km W Bolognola (MC), on

  • 18-04-2024 21:50:15 (UTC)
  • 18-04-2024 23:50:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9910, 13.1860 at 16 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 3 142 142
Acquacanina MC 5 121 263
Fiastra MC 6 559 822
Ussita MC 6 444 1266
Fiordimonte MC 9 202 1468
Visso MC 10 1107 2575
Sarnano MC 11 3264 5839
Castelsantangelo sul Nera MC 11 281 6120
Pievebovigliana MC 11 866 6986
Pieve Torina MC 13 1458 8444
Montefortino FM 14 1178 9622
Amandola FM 14 3629 13251
Cessapalombo MC 15 512 13763
Monte Cavallo MC 15 145 13908
Gualdo MC 15 815 14723
Muccia MC 15 915 15638
Montemonaco AP 15 604 16242
Caldarola MC 17 1823 18065
San Ginesio MC 17 3498 21563
Camporotondo di Fiastrone MC 17 563 22126
Preci PG 17 724 22850
Camerino MC 19 6974 29824
Comunanza AP 19 3166 32990
Belforte del Chienti MC 20 1886 34876

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
65 Km NE of Terni (111501 inhabitants)
66 Km E of Perugia (166134 inhabitants)
73 Km N of L'Aquila (69753 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
95 Km NW of Montesilvano (53738 inhabitants)
96 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 0.7 2024-04-18
21:50:15		 42.9913 13.1857 16 2024-04-18
22:06:24		 Sala Sismica INGV-Roma 126872391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-18 21:50:15 ± 0.09
Latitude 42.9913 ± 0.0027
Longitude 13.1857 ± 0.0049
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126872391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 355
Semi-minor axis of confidence ellipse (meter) 229
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 262
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) 124
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.08004
Epicentral distance of station farthest from the epicenter (degree) 0.20594
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.4
Num. used stations 3
Type of magnitude ML
Reference to an origin 126872391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-18 22:06:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHZ. 2024-04-18T21:50:24.75 0.3 undecidable manual S 274 22.8549 114 0.21 72
IV.NRCA.HHZ. 2024-04-18T21:50:23.32 0.6 undecidable manual S 198 18.4704 121 -0.18 48
IV.MMO1.EHZ. 2024-04-18T21:50:22.80 0.6 undecidable manual S 132 15.3735 128 -0.02 50
7F.SIB2.EHZ. 2024-04-18T21:50:22.50 0.6 undecidable manual S 139 14.6742 129 -0.18 49
IV.CSP1.EHZ. 2024-04-18T21:50:22.04 0.6 undecidable manual S 8 11.2776 138 0.03 50
IV.PF6.EHE. 2024-04-18T21:50:22.89 0.6 undecidable manual S 3 16.2726 126 -0.12 49
IV.MC2.EHN. 2024-04-18T21:50:21.88 0.3 undecidable manual S 178 8.88 146 0.26 72
IV.FDMO.HHZ. 2024-04-18T21:50:21.55 0.6 undecidable manual S 302 9.3795 144 -0.16 48
IV.CESI.HHZ. 2024-04-18T21:50:20.79 0.3 undecidable manual P 274 22.8549 114 0 74
IV.NRCA.HHZ. 2024-04-18T21:50:20.09 0.3 undecidable manual P 198 18.4704 121 -0.09 74
IV.FDMO.HHZ. 2024-04-18T21:50:19.11 0.1 undecidable manual P 302 9.3795 144 -0.04 100
IV.MMO1.EHZ. 2024-04-18T21:50:19.78 0.1 undecidable manual P 132 15.3735 128 -0.01 100
7F.SIB2.EHZ. 2024-04-18T21:50:19.60 0.1 undecidable manual P 139 14.6742 129 -0.11 99
IV.CSP1.EHZ. 2024-04-18T21:50:19.41 0.1 undecidable manual P 8 11.2776 138 0.08 99
IV.PF6.EHE. 2024-04-18T21:50:19.93 0.1 undecidable manual P 3 16.2726 126 0.02 99
IV.MC2.EHN. 2024-04-18T21:50:19.17 0.1 undecidable manual P 178 8.88 146 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.2 0.00001607013 2.82 AML other m 2024-04-18T21:50:23.30
IV.FDMO.HHN. ML:0.6 0.000038713899999999995 1.2 AML other m 2024-04-18T21:50:22.48
IV.CSP1.EHN. ML:1.1 0.00011230698 1.26 AML other m 2024-04-18T21:50:22.69
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