Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 11-04-2021 and time 21:52:29 (UTC) in region 3 km E Pievebovigliana (MC)

A magnitude ML 0.9 earthquake occured in region: 3 km E Pievebovigliana (MC), on

  • 11-04-2021 21:52:29 (UTC)
  • 11-04-2021 23:52:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0580, 13.1210 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.

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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
Pievebovigliana MC 3 866 866
Fiordimonte MC 3 202 1068
Fiastra MC 4 559 1627
Acquacanina MC 5 121 1748
Pieve Torina MC 6 1458 3206
Muccia MC 7 915 4121
Camerino MC 10 6974 11095
Bolognola MC 11 142 11237
Monte Cavallo MC 12 145 11382
Caldarola MC 13 1823 13205
Cessapalombo MC 13 512 13717
Ussita MC 13 444 14161
Serravalle di Chienti MC 14 1070 15231
Visso MC 14 1107 16338
Camporotondo di Fiastrone MC 14 563 16901
Serrapetrona MC 14 966 17867
Sarnano MC 15 3264 21131
Belforte del Chienti MC 15 1886 23017
San Ginesio MC 17 3498 26515
Sefro MC 17 422 26937
Pioraco MC 17 1134 28071
Gualdo MC 18 815 28886
Castelraimondo MC 18 4587 33473
Castelsantangelo sul Nera MC 18 281 33754
San Severino Marche MC 20 12726 46480

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
60 Km E of Perugia (166134 inhabitants)
65 Km NW of Teramo (54892 inhabitants)
67 Km NE of Terni (111501 inhabitants)
70 Km SW of Ancona (100861 inhabitants)
82 Km N of L'Aquila (69753 inhabitants)
88 Km S of Fano (60888 inhabitants)
96 Km S of Pesaro (94582 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 0.9 2021-04-11
21:52:29		 43.0585 13.121 9 2021-04-11
22:03:34		 Sala Sismica INGV-Roma 89022031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-11 21:52:29 ± 0.08
Latitude 43.0585 ± 0.0027
Longitude 13.1210 ± 0.0037
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 89022031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 333
Semi-minor axis of confidence ellipse (meter) 155
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 210
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33815
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 89022031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-11 22:03:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2021-04-11T21:53:41.18 3.0 undecidable manual Sn 1.72 0
IV.VENL.HNZ. 2021-04-11T21:52:46.12 3.0 positive manual Pn 0.04 0
IV.RIBO.EHZ.01 2021-04-11T21:52:45.56 3.0 undecidable manual S -2.69 0
IV.ASSB.HHZ. 2021-04-11T21:52:42.22 0.1 undecidable manual S 267 37.5291 50 -0.04 94
IV.MF5.EHZ. 2021-04-11T21:52:40.41 0.1 undecidable manual S 106 28.5492 108 0.67 81
IV.EL6.EHZ. 2021-04-11T21:52:40.08 0.1 undecidable manual S 357 30.0477 107 -0.16 93
IV.MMO1.EHZ. 2021-04-11T21:52:38.04 0.1 undecidable manual S 137 24.2535 110 -0.3 92
IV.NRCA.HHZ. 2021-04-11T21:52:38.11 0.1 undecidable manual S 181 24.9528 110 -0.44 89
IV.CESI.HHN. 2021-04-11T21:52:36.85 0.3 undecidable manual S 251 18.5703 116 0.36 68
IV.MC2.EHZ. 2021-04-11T21:52:36.17 0.1 undecidable manual S 161 17.2716 118 0.09 97
IV.ASSB.HHZ. 2021-04-11T21:52:36.60 0.1 undecidable manual P 267 37.5291 50 -0.2 91
IV.MF5.EHZ. 2021-04-11T21:52:35.62 0.1 undecidable manual P 106 28.5492 108 0.28 91
IV.MML1.EHN. 2021-04-11T21:52:35.12 0.1 undecidable manual S 297 13.5753 124 0.13 97
IV.EL6.EHZ. 2021-04-11T21:52:35.40 0.1 undecidable manual P 357 30.0477 107 -0.23 92
IV.NRCA.HHZ. 2021-04-11T21:52:34.49 0.1 undecidable manual P 181 24.9528 110 -0.16 94
IT.MTCL.HGE. 2021-04-11T21:52:34.82 0.3 undecidable manual S 234 12.1767 127 0.22 71
IV.MMO1.EHZ. 2021-04-11T21:52:34.35 0.1 undecidable manual P 137 24.2535 110 -0.18 94
IV.PF6.EHZ. 2021-04-11T21:52:33.92 0.1 undecidable manual S 34 10.5783 130 -0.25 95
IV.CESI.HHN. 2021-04-11T21:52:33.68 0.3 undecidable manual P 251 18.5703 116 0.21 71
IV.MC2.EHZ. 2021-04-11T21:52:33.33 0.1 undecidable manual P 161 17.2716 118 0.09 97
IV.CSP1.EHZ. 2021-04-11T21:52:33.47 0.1 undecidable manual S 61 7.6812 139 0 100
IV.FDMO.HHZ. 2021-04-11T21:52:32.33 0.1 undecidable manual S 228 3.6963 158 -0.39 93
IV.MML1.EHN. 2021-04-11T21:52:32.80 0.1 undecidable manual P 297 13.5753 124 0.2 95
IV.RIBO.EHZ.01 2021-04-11T21:52:32.87 3.0 undecidable manual P -0.44 0
IV.PF6.EHZ. 2021-04-11T21:52:32.18 0.1 undecidable manual P 34 10.5783 130 0.05 99
IT.MTCL.HGE. 2021-04-11T21:52:32.55 0.3 undecidable manual P 234 12.1767 127 0.17 72
IV.CSP1.EHZ. 2021-04-11T21:52:31.80 0.1 undecidable manual P 61 7.6812 139 0.08 99
IV.FDMO.HHZ. 2021-04-11T21:52:31.34 0.1 undecidable manual P 228 3.6963 158 0.05 100
IV.FIR.HHZ. 2021-04-11T21:52:28.01 3.0 positive manual P 0.01 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.8 0.00003455056 0.1664 AML other m 2021-04-11T21:52:38.55
IV.NRCA.HHE. ML:0.7 0.000031771300000000005 0.0896 AML other m 2021-04-11T21:52:38.59
IV.CSP1.EHE. ML:1.0 0.0001683192 0.064 AML other m 2021-04-11T21:52:33.59
IV.CSP1.EHN. ML:1.0 0.0001533463 0.32 AML other m 2021-04-11T21:52:33.66
IV.EL6.EHN. ML:1.1 0.00005820495 0.1536 AML other m 2021-04-11T21:52:40.45
IV.EL6.EHE. ML:1.1 0.00005759946 0.1408 AML other m 2021-04-11T21:52:40.28
IV.ASSB.HHN. ML:0.9 0.00003074181 0.2176 AML other m 2021-04-11T21:52:42.45
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