Earthquake with magnitude of ML 1.3 on date 17-04-2021 and time 03:53:16 (UTC) in region 2 km NW Bolognola (MC)

A magnitude ML 1.3 earthquake occured in region: 2 km NW Bolognola (MC), on

  • 17-04-2021 03:53:16 (UTC)
  • 17-04-2021 05:53:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0040, 13.2100 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 4 121 263
Fiastra MC 6 559 822
Sarnano MC 8 3264 4086
Ussita MC 9 444 4530
Fiordimonte MC 10 202 4732
Pievebovigliana MC 12 866 5598
Amandola FM 12 3629 9227
Cessapalombo MC 12 512 9739
Montefortino FM 13 1178 10917
Gualdo MC 13 815 11732
Visso MC 13 1107 12839
Castelsantangelo sul Nera MC 13 281 13120
Pieve Torina MC 14 1458 14578
San Ginesio MC 15 3498 18076
Camporotondo di Fiastrone MC 15 563 18639
Montemonaco AP 15 604 19243
Caldarola MC 15 1823 21066
Muccia MC 16 915 21981
Monte Cavallo MC 17 145 22126
Comunanza AP 17 3166 25292
Belforte del Chienti MC 18 1886 27178
Penna San Giovanni MC 18 1108 28286
Sant'Angelo in Pontano MC 19 1436 29722
Camerino MC 19 6974 36696
Monte San Martino MC 19 765 37461
Smerillo FM 19 365 37826
Serrapetrona MC 19 966 38792
Preci PG 20 724 39516

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
67 Km NE of Terni (111501 inhabitants)
68 Km E of Perugia (166134 inhabitants)
73 Km SW of Ancona (100861 inhabitants)
74 Km N of L'Aquila (69753 inhabitants)
94 Km NW of Montesilvano (53738 inhabitants)
95 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 1.3 2021-04-17
03:53:16
43.0045 13.2098 9 2021-04-17
04:00:12
Sala Sismica INGV-Roma 89167391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-17 03:53:16 ± 0.09
Latitude 43.0045 ± 0.0045
Longitude 13.2098 ± 0.0074
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 89167391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 494
Semi-minor axis of confidence ellipse (meter) 366
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.08723
Epicentral distance of station farthest from the epicenter (degree) 0.33455
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 89167391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-17 04:00:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2021-04-17T03:53:24.11 0.1 undecidable manual P 346 37.1295 50 -0.08 99
IV.CESI.HHZ. 2021-04-17T03:53:22.34 0.3 undecidable manual P 270 24.753 111 0.2 74
IV.MMO1.EHZ. 2021-04-17T03:53:22.77 0.6 undecidable manual S 141 15.0738 122 -0.22 50
IV.CSP1.EHZ. 2021-04-17T03:53:21.45 0.6 undecidable manual S 358 9.6792 134 -0.07 52
IV.MF5.EHZ. 2021-04-17T03:53:21.86 0.3 undecidable manual P 95 20.3685 115 0.53 69
IV.FDMO.HHZ. 2021-04-17T03:53:21.78 0.6 undecidable manual S 290 10.5783 132 0.05 52
IV.NRCA.HHZ. 2021-04-17T03:53:21.32 0.3 negative manual P 202 20.4684 115 -0.03 77
IV.MC2.EHZ. 2021-04-17T03:53:21.80 0.6 undecidable manual S 189 10.4784 132 0.09 52
IV.PF6.EHE. 2021-04-17T03:53:20.27 0.3 undecidable manual P 355 14.874 122 -0.09 77
IV.MMO1.EHZ. 2021-04-17T03:53:20.19 0.1 negative manual P 141 15.0738 122 -0.2 100
IV.FDMO.HHZ. 2021-04-17T03:53:19.61 0.6 negative manual P 290 10.5783 132 -0.06 52
IV.MC2.EHZ. 2021-04-17T03:53:19.66 0.3 undecidable manual P 189 10.4784 132 0.01 79
IV.CSP1.EHZ. 2021-04-17T03:53:19.40 1.0 undecidable manual P 358 9.6792 134 -0.14 26
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHN. ML:1.8 0.00085948345 0.3776 AML other m 2021-04-17T03:53:24.45
IV.FDMO.HHE. ML:0.9 0.00010193730500000001 0.2784 AML other m 2021-04-17T03:53:23.46
IV.CSP1.EHE. ML:1.7 0.0006881528 0.3584 AML other m 2021-04-17T03:53:24.77
IV.FDMO.HHN. ML:1.1 0.00014388109999999998 0.1792 AML other m 2021-04-17T03:53:22.46
IV.NRCA.HHE. ML:1.4 0.00020150000000000002 0.12 AML other m 2021-04-17T03:53:26.56
IV.CESI.HHE. ML:1.0 0.00005732492 0.32 AML other m 2021-04-17T03:53:27.48
IV.NRCA.HHN. ML:1.3 0.000154 0.12 AML other m 2021-04-17T03:53:27.41
IV.CESI.HHN. ML:1.2 0.00009125 0.62 AML other m 2021-04-17T03:53:29.68
IV.NRCA.HNE. ML:1.4 0.00017368254999999998 0.1216 AML other m 2021-04-17T03:53:26.56
IV.NRCA.HNN. ML:1.3 0.00016184805 0.1184 AML other m 2021-04-17T03:53:27.41
IV.MF5.EHE. ML:1.3 0.00014984420500000002 0.5792 AML other m 2021-04-17T03:53:30.99
IV.MF5.EHN. ML:1.4 0.0001685794 1.3376 AML other m 2021-04-17T03:53:32.70
IV.CESI.HNN. ML:1.4 0.00017010595 0.9376 AML other m 2021-04-17T03:53:23.54
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download