Earthquake with magnitude of ML 1.1 on date 10-02-2021 and time 19:59:15 (Italy) in region 4 km S Bolognola (MC)

A magnitude ML 1.1 earthquake occured in region: 4 km S Bolognola (MC), on

  • 10-02-2021 18:59:15 (UTC)
  • 10-02-2021 19:59:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.96, 13.22 at 5 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 4 142 142
Ussita MC 7 444 586
Castelsantangelo sul Nera MC 9 281 867
Acquacanina MC 9 121 988
Montefortino FM 10 1178 2166
Montemonaco AP 10 604 2770
Fiastra MC 11 559 3329
Sarnano MC 11 3264 6593
Amandola FM 11 3629 10222
Visso MC 11 1107 11329
Fiordimonte MC 14 202 11531
Montegallo AP 15 523 12054
Comunanza AP 16 3166 15220
Gualdo MC 16 815 16035
Pievebovigliana MC 17 866 16901
Pieve Torina MC 17 1458 18359
Preci PG 17 724 19083
Cessapalombo MC 17 512 19595
Monte Cavallo MC 19 145 19740
San Ginesio MC 19 3498 23238
Smerillo FM 19 365 23603
Montefalcone Appennino FM 20 424 24027
Monte San Martino MC 20 765 24792
Penna San Giovanni MC 20 1108 25900
Camporotondo di Fiastrone MC 20 563 26463

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
51 Km NW of Teramo (54892 inhabitants)
64 Km NE of Terni (111501 inhabitants)
69 Km N of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
90 Km NW of Montesilvano (53738 inhabitants)
98 Km NW of Pescara (121014 inhabitants)
100 Km S of Fano (60888 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.1 2021-02-10
18:59:15
42.96 13.22 5 2021-02-10
19:06:57
Sala Sismica INGV-Roma 87015091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-10 18:59:15 ± 0.3
Latitude 42.96 ± 0.01
Longitude 13.22 ± 0.01
Depth (km) 5 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87015091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 660
Semi-minor axis of confidence ellipse (meter) 275
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 660
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 14
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
Epicentral distance of station farthest from the epicenter (degree) 0.24282
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 87015091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-10 19:06:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SARZ.HHZ. 2021-02-10T19:00:50.15 3.0 undecidable manual Sg 17.780001 0
IV.MCEL.HHZ. 2021-02-10T19:00:38.61 3.0 undecidable manual Sn 5.49 0
IV.ORZI.HHZ. 2021-02-10T19:00:27.44 3.0 undecidable manual Sn 0.68 0
IV.GIZZ.HHZ. 2021-02-10T19:00:13.53 3.0 positive manual Pn 9.65 0
IV.SACR.HHZ. 2021-02-10T19:00:05.18 3.0 undecidable manual Sn -1 0
IV.NDIM.HHZ. 2021-02-10T19:00:01.26 3.0 undecidable manual Sn -8.65 0
IV.CPGN.EHZ. 2021-02-10T18:59:53.10 3.0 undecidable manual Sg 5.28 0
IV.MCEL.HHZ. 2021-02-10T18:59:49.21 3.0 negative manual Pn 1.56 0
IV.PE3.EHZ. 2021-02-10T18:59:48.99 3.0 undecidable manual Sg 2.56 0
IX.SFL3.HNZ.01 2021-02-10T18:59:47.63 3.0 undecidable manual Pn 5.56 0
IV.CSNT.HHZ. 2021-02-10T18:59:34.42 3.0 positive manual Pg 9.04 0
IV.MML1.HNZ. 2021-02-10T18:59:25.31 0.6 undecidable manual S 311 0.2428 101 0.19 67
IV.CESI.HHZ. 2021-02-10T18:59:25.28 0.6 undecidable manual S 282 0.2392 101 0.3 65
IV.MF5.EHZ. 2021-02-10T18:59:23.43 0.6 undecidable manual S 79 0.1745 105 0.88 54
IV.CSP1.EHZ. 2021-02-10T18:59:21.13 0.6 undecidable manual S 354 0.1367 109 -0.03 70
IV.NRCA.HHZ. 2021-02-10T18:59:21.89 0.6 undecidable manual S 214 0.1466 108 0.38 65
IV.CESI.HHZ. 2021-02-10T18:59:20.78 0.6 undecidable manual P 282 0.2392 101 -0.23 66
IV.MML1.HNZ. 2021-02-10T18:59:20.81 0.3 undecidable manual P 311 0.2428 101 -0.28 98
IV.FDMO.HHZ. 2021-02-10T18:59:20.93 0.6 undecidable manual S 309 0.1286 110 0.06 70
IV.CPGN.EHZ. 2021-02-10T18:59:20.65 3.0 undecidable manual Pn -1.55 0
IV.MMO1.EHZ. 2021-02-10T18:59:19.28 0.3 undecidable manual S 127 0.0935 117 -0.33 100
IV.MF5.EHZ. 2021-02-10T18:59:19.79 1.0 undecidable manual P 79 0.1745 105 0.18 34
IV.NRCA.HHZ. 2021-02-10T18:59:19.03 0.6 negative manual P 214 0.1466 108 0.03 70
IV.CRTC.HHZ. 2021-02-10T18:59:19.44 3.0 positive manual P -1.75 0
IV.FDMO.HHZ. 2021-02-10T18:59:18.49 0.6 positive manual P 309 0.1286 110 -0.15 69
IV.CSP1.EHZ. 2021-02-10T18:59:18.61 0.6 undecidable manual P 354 0.1367 109 -0.2 68
IV.MMO1.EHZ. 2021-02-10T18:59:17.72 0.6 undecidable manual P 127 0.0935 117 -0.19 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.1 0.0001345 0.16 AML other m 2021-02-10T18:59:22.16
IV.NRCA.HHN. ML:1.1 0.000122 0.98 AML other m 2021-02-10T18:59:22.19
IV.CRTC.HHE. ML:2.2 0.00015679353 0.0512 AML other m 2021-02-10T18:59:28.06
IV.CRTC.HHN. ML:1.8 7.5540535E-5 0.576 AML other m 2021-02-10T18:59:52.56
IV.MCEL.HHN. ML:3.6 0.0002905 1.86 AML other m 2021-02-10T18:59:54.93
IV.NDIM.HNE. ML:3.6 0.0005725 0.1 AML other m 2021-02-10T19:00:09.61
IX.SFL3.HNE.01 ML:4.9 0.010215 0.76 AML other m 2021-02-10T19:00:10.41
IX.SFL3.HNN.01 ML:4.8 0.008065 0.94 AML other m 2021-02-10T19:00:12.20
IV.MCEL.HHE. ML:3.3 0.000149 0.42 AML other m 2021-02-10T19:00:27.70
IV.NDIM.HNN. ML:3.7 0.0007545 1.04 AML other m 2021-02-10T19:00:41.01
IV.FDMO.HHE. ML:0.7 5.402431E-5 2.5856 AML other m 2021-02-10T18:59:22.57
IV.FDMO.HHN. ML:0.7 5.92714E-5 2.688 AML other m 2021-02-10T18:59:21.52
IV.CSP1.EHE. ML:1.2 0.0001862763 1.2416 AML other m 2021-02-10T18:59:18.88
IV.CSP1.EHN. ML:1.1 0.0001230536 1.0368 AML other m 2021-02-10T18:59:34.40
IV.NRCA.HNE. ML:1.1 0.000141589945 0.192 AML other m 2021-02-10T18:59:22.07
IV.NRCA.HNN. ML:1.2 0.00018152005 0.896 AML other m 2021-02-10T18:59:27.45
IV.CRTC.HNE. ML:3.8 0.0066383305 1.152 AML other m 2021-02-10T18:59:48.61
IV.CRTC.HNN. ML:3.9 0.00893747 0.9728 AML other m 2021-02-10T18:59:25.34
IV.MF5.EHE. ML:1.5 0.00025332005 2.0352 AML other m 2021-02-10T18:59:31.48
IV.MF5.EHN. ML:1.5 0.0002581527 2.1888 AML other m 2021-02-10T18:59:27.79
IV.CPGN.HNE. ML:2.3 0.0001493445 0.5504 AML other m 2021-02-10T19:00:23.69
IV.CPGN.HNN. ML:6.5 2.3296324 1.3312 AML other m 2021-02-10T19:00:12.81
IV.CPGN.EHE. ML:1.7 3.90474E-5 0.3968 AML other m 2021-02-10T19:00:25.21
IV.CPGN.EHN. ML:2 7.99002E-5 0.9088 AML other m 2021-02-10T18:59:20.56
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download