Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 21-02-2024 and time 16:23:22 (UTC) in region 3 km NE Bolognola (MC)

A magnitude ML 0.8 earthquake occured in region: 3 km NE Bolognola (MC), on

  • 21-02-2024 16:23:22 (UTC)
  • 21-02-2024 17:23:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0100, 13.2530 at 28 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
Sarnano MC 5 3264 3406
Acquacanina MC 7 121 3527
Fiastra MC 8 559 4086
Amandola FM 9 3629 7715
Gualdo MC 10 815 8530
Montefortino FM 10 1178 9708
Cessapalombo MC 11 512 10220
Ussita MC 12 444 10664
San Ginesio MC 12 3498 14162
Fiordimonte MC 14 202 14364
Montemonaco AP 14 604 14968
Camporotondo di Fiastrone MC 14 563 15531
Comunanza AP 14 3166 18697
Caldarola MC 15 1823 20520
Pievebovigliana MC 15 866 21386
Penna San Giovanni MC 15 1108 22494
Castelsantangelo sul Nera MC 15 281 22775
Monte San Martino MC 15 765 23540
Sant'Angelo in Pontano MC 15 1436 24976
Smerillo FM 16 365 25341
Visso MC 16 1107 26448
Pieve Torina MC 17 1458 27906
Montefalcone Appennino FM 17 424 28330
Belforte del Chienti MC 17 1886 30216
Ripe San Ginesio MC 18 852 31068
Muccia MC 19 915 31983
Colmurano MC 19 1263 33246
Serrapetrona MC 19 966 34212
Montegallo AP 20 523 34735
Santa Vittoria in Matenano FM 20 1330 36065

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
70 Km NE of Terni (111501 inhabitants)
71 Km SW of Ancona (100861 inhabitants)
71 Km E of Perugia (166134 inhabitants)
74 Km N of L'Aquila (69753 inhabitants)
92 Km NW of Montesilvano (53738 inhabitants)
95 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 0.8 2024-02-21
16:23:22		 43.0098 13.2532 28 2024-02-21
16:53:09		 Sala Sismica INGV-Roma 125426131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-21 16:23:22 ± 0.14
Latitude 43.0098 ± 0.0054
Longitude 13.2532 ± 0.0074
Depth (km) 28 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 125426131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 662
Semi-minor axis of confidence ellipse (meter) 390
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 219
Circular confidence region, given by single value of horizontal uncertainty (meter) 660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.23023
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 125426131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-21 16:53:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CIMA.HNZ. 2024-02-21T16:23:39.92 3.0 undecidable manual Sn 0.1 0
IV.ATCC.EHZ. 2024-02-21T16:23:38.10 3.0 undecidable manual Sn -0.53 0
IV.ARVD.HHZ. 2024-02-21T16:23:37.65 3.0 undecidable manual Sn -2.6 0
IV.CERT.HHZ. 2024-02-21T16:23:37.61 3.0 negative manual P 0.12 0
IV.MML1.EHZ. 2024-02-21T16:23:33.94 0.3 undecidable manual S 297 25.5522 133 0.39 69
IV.MF5.EHN. 2024-02-21T16:23:32.33 0.3 undecidable manual S 98 16.9719 146 0.28 71
IV.NRCA.HHZ. 2024-02-21T16:23:32.98 0.3 undecidable manual S 210 22.5552 137 -0.01 74
7F.SIB2.EHZ. 2024-02-21T16:23:31.34 0.3 undecidable manual S 163 13.7751 151 -0.27 72
IV.MMO1.EHZ. 2024-02-21T16:23:31.43 0.3 undecidable manual S 154 13.6752 151 -0.16 73
7F.SIB3.EHZ. 2024-02-21T16:23:31.68 0.3 undecidable manual S 175 14.9739 149 -0.09 74
IV.FDMO.HHZ. 2024-02-21T16:23:31.53 0.3 undecidable manual S 282 13.7751 151 -0.08 74
7F.SIB1.EHN. 2024-02-21T16:23:31.57 0.3 undecidable manual S 174 12.876 153 0.08 74
IV.MC2.EHN. 2024-02-21T16:23:31.66 0.3 undecidable manual S 206 12.0768 154 0.26 72
IV.CSP1.EHZ. 2024-02-21T16:23:30.97 0.3 undecidable manual S 337 9.879 159 -0.2 73
IV.NRCA.HHZ. 2024-02-21T16:23:28.45 0.1 undecidable manual P 210 22.5552 137 -0.01 99
IV.MML1.EHZ. 2024-02-21T16:23:28.88 0.1 undecidable manual P 297 25.5522 133 0.09 97
IV.MF5.EHN. 2024-02-21T16:23:28.09 0.1 undecidable manual P 98 16.9719 146 0.17 96
7F.SIB1.EHN. 2024-02-21T16:23:27.69 0.1 undecidable manual P 174 12.876 153 0.09 99
IV.PF6.EHE. 2024-02-21T16:23:27.61 0.1 undecidable manual P 341 14.9739 149 -0.15 97
IV.MC2.EHN. 2024-02-21T16:23:27.69 0.1 undecidable manual P 206 12.0768 154 0.14 98
IV.CSP1.EHZ. 2024-02-21T16:23:27.36 0.1 undecidable manual P 337 9.879 159 -0.05 100
7F.SIB2.EHZ. 2024-02-21T16:23:27.50 0.1 undecidable manual P 163 13.7751 151 -0.17 97
IV.MMO1.EHZ. 2024-02-21T16:23:27.55 0.1 undecidable manual P 154 13.6752 151 -0.1 99
7F.SIB3.EHZ. 2024-02-21T16:23:27.70 0.1 undecidable manual P 175 14.9739 149 -0.06 99
IV.FDMO.HHZ. 2024-02-21T16:23:27.60 0.1 undecidable manual P 282 13.7751 151 -0.06 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.8 0.000029199999999999998 0.2 AML other m 2024-02-21T16:23:31.71
IV.FDMO.HHN. ML:0.6 0.0000218 1.22 AML other m 2024-02-21T16:23:31.26
IV.NRCA.HHN. ML:1.3 0.0000759 0.28 AML other m 2024-02-21T16:23:33.11
IV.NRCA.HHE. ML:1.4 0.00009615 0.52 AML other m 2024-02-21T16:23:33.31
IV.MMO1.EHE. ML:0.7 0.000027187418 0.0896 AML other m 2024-02-21T16:23:32.12
IV.MMO1.EHN. ML:1.0 0.00004958467 0.1024 AML other m 2024-02-21T16:23:31.84
IV.MML1.EHE. ML:0.6 0.000013095506 0.2048 AML other m 2024-02-21T16:23:34.04
IV.MML1.EHN. ML:0.6 0.000013324739999999999 0.1792 AML other m 2024-02-21T16:23:34.59
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