Earthquake with magnitude of ML 1.6 on date 09-10-2021 and time 05:03:24 (UTC) in region 5 km SE Bolognola (MC)

A magnitude ML 1.6 earthquake occured in region: 5 km SE Bolognola (MC), on

  • 09-10-2021 05:03:24 (UTC)
  • 09-10-2021 07:03:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9580, 13.2670 at 26 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 5 142 142
Montefortino FM 6 1178 1320
Amandola FM 8 3629 4949
Montemonaco AP 8 604 5553
Sarnano MC 9 3264 8817
Ussita MC 11 444 9261
Acquacanina MC 11 121 9382
Castelsantangelo sul Nera MC 12 281 9663
Comunanza AP 12 3166 12829
Fiastra MC 13 559 13388
Gualdo MC 14 815 14203
Montegallo AP 14 523 14726
Visso MC 15 1107 15833
Smerillo FM 16 365 16198
Montefalcone Appennino FM 16 424 16622
Monte San Martino MC 16 765 17387
Fiordimonte MC 17 202 17589
Penna San Giovanni MC 17 1108 18697
Cessapalombo MC 17 512 19209
Palmiano AP 17 196 19405
San Ginesio MC 17 3498 22903
Force AP 18 1354 24257
Pievebovigliana MC 19 866 25123
Sant'Angelo in Pontano MC 19 1436 26559
Camporotondo di Fiastrone MC 19 563 27122

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km E of Foligno (57155 inhabitants)
49 Km NW of Teramo (54892 inhabitants)
67 Km NE of Terni (111501 inhabitants)
68 Km N of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
76 Km S of Ancona (100861 inhabitants)
87 Km NW of Montesilvano (53738 inhabitants)
95 Km NW of Pescara (121014 inhabitants)
100 Km NW of Chieti (51815 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
Bulletin
Rev1000
ML 1.6 2021-10-09
05:03:24
42.9583 13.2668 26 2022-03-30
13:04:27
Bollettino Sismico Italiano INGV 99440151
Reviewed
Rev100
ML 1.6 2021-10-09
05:03:24
42.9522 13.2715 26 2021-10-09
05:07:43
Sala Sismica INGV-Roma 96364341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-09 05:03:24 ± 0.11
Latitude 42.9583 ± 0.0036
Longitude 13.2668 ± 0.0061
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99440151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 535
Semi-minor axis of confidence ellipse (meter) 175
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 242
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.07374
Epicentral distance of station farthest from the epicenter (degree) 0.41639
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 96364341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-09 05:07:43

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 99440151
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-07 15:03:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2021-10-09T05:03:41.05 0.6 undecidable manual S 143 46.2204 113 0.49 42
IV.EL6.EHZ. 2021-10-09T05:03:40.57 0.6 undecidable manual S 342 43.2234 114 0.74 39
IV.LNSS.HNZ. 2021-10-09T05:03:40.36 0.6 undecidable manual S 205 43.5231 114 0.46 43
IV.SMA1.EHZ. 2021-10-09T05:03:38.42 0.6 undecidable manual S 171 36.8298 119 0.14 46
IV.T1299.HNN. 2021-10-09T05:03:38.43 0.6 undecidable manual S 178 35.9418 119 0.34 45
IV.CESI.HHZ. 2021-10-09T05:03:37.17 0.6 undecidable manual S 280 29.8479 125 0.46 44
IV.MML1.EHZ. 2021-10-09T05:03:36.88 0.6 undecidable manual S 306 29.4483 125 0.25 46
IV.MTRA.EHE. 2021-10-09T05:03:35.40 0.6 undecidable manual S 155 24.753 131 -0.23 47
IT.MTCL.HGZ. 2021-10-09T05:03:35.01 0.6 undecidable manual S 280 22.0668 135 -0.1 48
IV.TERO.HHZ. 2021-10-09T05:03:34.01 0.3 undecidable manual P 143 46.2204 113 0.05 70
IV.MF5.EHZ. 2021-10-09T05:03:34.33 0.6 undecidable manual S 78 15.9729 144 0.28 46
IV.PF6.EHN. 2021-10-09T05:03:34.62 0.6 undecidable manual S 344 20.7681 137 -0.25 47
IV.NRCA.HHZ. 2021-10-09T05:03:34.42 0.6 undecidable manual S 222 18.5703 140 -0.06 49
IV.SAP2.EHE. 2021-10-09T05:03:34.81 0.6 undecidable manual S 35 18.6702 140 0.31 46
IV.MC2.EHZ. 2021-10-09T05:03:33.22 0.6 undecidable manual S 231 8.1807 160 0.14 49
IV.LNSS.HNZ. 2021-10-09T05:03:33.58 0.1 undecidable manual P 205 43.5231 114 0 94
IV.GUMA.HHZ. 2021-10-09T05:03:33.78 0.6 undecidable manual S 26 12.7761 150 0.18 48
IV.CSP1.EHZ. 2021-10-09T05:03:33.86 0.6 undecidable manual S 341 15.6732 145 -0.14 48
IV.EL6.EHZ. 2021-10-09T05:03:33.93 0.3 undecidable manual P 342 43.2234 114 0.39 66
IV.FDMO.HHZ. 2021-10-09T05:03:33.97 0.6 undecidable manual S 301 16.9719 143 -0.23 47
IV.SMA1.EHZ. 2021-10-09T05:03:32.47 0.1 undecidable manual P 171 36.8298 119 -0.18 92
IV.T1299.HNN. 2021-10-09T05:03:32.51 0.1 undecidable manual P 178 35.9418 119 -0.03 95
IV.MMO1.EHZ. 2021-10-09T05:03:32.71 0.6 undecidable manual S 143 8.1807 160 -0.37 47
IV.MML1.EHZ. 2021-10-09T05:03:31.68 0.3 undecidable manual P 306 29.4483 125 -0.01 72
IV.CESI.HHZ. 2021-10-09T05:03:31.78 0.1 undecidable manual P 280 29.8479 125 0.04 97
IV.CSP1.EHZ. 2021-10-09T05:03:30.04 0.1 undecidable manual P 341 15.6732 145 -0.14 96
IV.MTRA.EHE. 2021-10-09T05:03:30.88 0.1 undecidable manual P 155 24.753 131 -0.24 93
IT.MTCL.HGZ. 2021-10-09T05:03:30.62 0.3 undecidable manual P 280 22.0668 135 -0.2 70
IV.FDMO.HHZ. 2021-10-09T05:03:30.11 0.1 undecidable manual P 301 16.9719 143 -0.19 95
IV.FEMA.HNE. 2021-10-09T05:03:30.38 0.3 undecidable manual P 271 17.6712 142 0.02 74
IV.MF5.EHZ. 2021-10-09T05:03:30.30 0.1 negative manual P 78 15.9729 144 0.09 97
IV.PF6.EHN. 2021-10-09T05:03:30.47 0.1 undecidable manual P 344 20.7681 137 -0.2 94
IV.NRCA.HHZ. 2021-10-09T05:03:30.32 0.1 positive manual P 222 18.5703 140 -0.13 96
IV.SAP2.EHE. 2021-10-09T05:03:30.44 0.3 undecidable manual P 35 18.6702 140 -0.03 74
IV.MMO1.EHZ. 2021-10-09T05:03:29.41 0.1 undecidable manual P 143 8.1807 160 -0.24 96
IV.MC2.EHZ. 2021-10-09T05:03:29.68 0.1 positive manual P 231 8.1807 160 0.03 100
IV.GUMA.HHZ. 2021-10-09T05:03:29.88 0.1 undecidable manual P 26 12.7761 150 -0.06 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUMA.HHE. ML:1.6 0.0002085 1.58 AML other m 2021-10-09T05:03:33.93
IV.GUMA.HHN. ML:1.8 0.0003085 0.44 AML other m 2021-10-09T05:03:34.04
IV.NRCA.HHN. ML:1.6 0.00017649999999999998 0.12 AML other m 2021-10-09T05:03:34.68
IV.NRCA.HHE. ML:1.6 0.000182 0.7 AML other m 2021-10-09T05:03:35.64
IV.CESI.HHN. ML:1.6 0.000142 0.26 AML other m 2021-10-09T05:03:37.36
IV.CESI.HHE. ML:1.5 0.00010965 1.52 AML other m 2021-10-09T05:03:40.05
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