Earthquake with magnitude of ML 1.1 on date 12-09-2021 and time 10:47:53 (Italy) in region 1 km NW Castelsantangelo sul Nera (MC)

A magnitude ML 1.1 earthquake occured in region: 1 km NW Castelsantangelo sul Nera (MC), on

  • 12-09-2021 08:47:53 (UTC)
  • 12-09-2021 10:47:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.899, 13.15 at 7 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
Castelsantangelo sul Nera MC 1 281 281
Ussita MC 5 444 725
Visso MC 6 1107 1832
Preci PG 9 724 2556
Bolognola MC 12 142 2698
Norcia PG 13 4957 7655
Montemonaco AP 15 604 8259
Acquacanina MC 15 121 8380
Fiastra MC 15 559 8939
Monte Cavallo MC 16 145 9084
Fiordimonte MC 16 202 9286
Montegallo AP 16 523 9809
Montefortino FM 16 1178 10987
Pieve Torina MC 18 1458 12445
Sellano PG 18 1079 13524
Arquata del Tronto AP 19 1178 14702
Pievebovigliana MC 19 866 15568
Amandola FM 19 3629 19197
Sarnano MC 20 3264 22461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
53 Km NW of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
64 Km NW of L'Aquila (69753 inhabitants)
66 Km E of Perugia (166134 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
100 Km W of Pescara (121014 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 2021-09-12
08:47:53
42.8992 13.1497 7 2021-09-12
09:10:27
Sala Sismica INGV-Roma 95335561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-12 08:47:53 ± 0.12
Latitude 42.8992 ± 0.0027
Longitude 13.1497 ± 0.0037
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95335561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 199
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 340
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.25091
Number of stations at which the event was observed 35
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 95335561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-12 09:10:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PETRA.HHZ. 2021-09-12T08:49:58.34 3.0 undecidable manual Sn -9.99 0
CR.STON.BHZ. 2021-09-12T08:49:47.92 3.0 undecidable manual Sg 25.98 0
IV.MDI.HHZ. 2021-09-12T08:49:41.94 3.0 undecidable manual Sg 17.5 0
IV.EUCT.HNZ. 2021-09-12T08:49:33.92 3.0 undecidable manual Sg 10.98 0
GU.IMI.HHZ. 2021-09-12T08:49:32.26 3.0 undecidable manual Sn 1.04 0
IV.MCEL.HHZ. 2021-09-12T08:49:31.75 3.0 undecidable manual Sg 8.28 0
IV.CADC.HNZ. 2021-09-12T08:49:28.79 3.0 undecidable manual Sg 14.8 0
IV.VOBA.EHZ. 2021-09-12T08:49:28.95 3.0 undecidable manual Sg 15.6 0
IX.SCL3.EHZ.02 2021-09-12T08:49:27.24 3.0 undecidable manual Sg 14.27 0
IV.MTGR.HHZ. 2021-09-12T08:49:05.11 3.0 undecidable manual Pn -1.71 0
CH.MUGIO.HHZ. 2021-09-12T08:49:05.27 3.0 undecidable manual Pg 15.87 0
CH.FUORN.HHZ. 2021-09-12T08:49:01.31 3.0 undecidable manual Pg 11.75 0
IX.SSB3.HHZ.02 2021-09-12T08:49:00.21 3.0 undecidable manual Sn -2.15 0
IV.ILOS.HNZ. 2021-09-12T08:48:56.46 3.0 undecidable manual Pn -5.77 0
IV.IACL.HHZ. 2021-09-12T08:48:52.91 3.0 undecidable manual Pn -6.58 0
GU.MGRO.HHZ. 2021-09-12T08:48:49.09 3.0 undecidable manual Pn 0.79 0
IV.CADC.EHZ. 2021-09-12T08:48:47.00 3.0 negative manual Pg 9.54 0
SI.ABSI.HHZ. 2021-09-12T08:48:44.95 3.0 undecidable manual Pn -1.73 0
IV.SLCN.HHZ. 2021-09-12T08:48:42.35 3.0 undecidable manual Pn 1.31 0
IX.RSF3.HHZ.02 2021-09-12T08:48:41.07 3.0 undecidable manual Pg 9.22 0
IV.MDI.HHZ. 2021-09-12T08:48:41.30 3.0 undecidable manual Pn -2.03 0
IV.LAV9.HHZ. 2021-09-12T08:48:41.09 3.0 undecidable manual Sg 6.78 0
IV.OVO.HHZ. 2021-09-12T08:48:40.29 3.0 undecidable manual Pg 10.8 0
IX.SCL3.EHZ.02 2021-09-12T08:48:39.12 3.0 undecidable manual Pn 2.23 0
IV.TOLF.HHZ. 2021-09-12T08:48:33.37 3.0 undecidable manual Sg 3.08 0
IV.PTRJ.HHZ. 2021-09-12T08:48:21.43 3.0 undecidable manual Pn -2.14 0
IV.MELA.HHZ. 2021-09-12T08:48:20.64 3.0 negative manual Pn -3.17 0
IV.VCEL.EHZ. 2021-09-12T08:48:18.01 3.0 undecidable manual Sn -3.4 0
IV.FIAM.HHZ. 2021-09-12T08:48:15.77 3.0 undecidable manual S -3.7 0
IV.RIBO.EHZ.01 2021-09-12T08:48:13.62 3.0 undecidable manual Pn -1.29 0
IV.MML1.EHZ. 2021-09-12T08:48:03.84 0.3 undecidable manual S 329 0.2509 104 -0.09 71
IV.APEC.HHZ. 2021-09-12T08:48:02.56 3.0 positive manual P -0.55 0
IV.GUMA.HHZ. 2021-09-12T08:48:02.94 0.3 undecidable manual S 40 0.2122 106 0.43 67
IV.CSP1.EHZ. 2021-09-12T08:48:01.92 0.6 undecidable manual S 12 0.197 108 -0.01 49
IV.FDMO.HHZ. 2021-09-12T08:48:00.09 0.6 undecidable manual S 342 0.1448 113 0.04 49
IV.MMO1.EHZ. 2021-09-12T08:47:59.31 0.3 undecidable manual S 90 0.1295 116 -0.21 71
IV.MML1.EHZ. 2021-09-12T08:47:59.57 0.1 undecidable manual P 329 0.2509 104 -0.16 94
IV.CSP1.EHZ. 2021-09-12T08:47:58.46 3.0 undecidable manual P 12 0.197 108 -0.11 24
IV.GUMA.HHZ. 2021-09-12T08:47:58.94 0.1 undecidable manual P 40 0.2122 106 0.04 97
IV.MMO1.EHZ. 2021-09-12T08:47:57.10 0.1 undecidable manual P 90 0.1295 116 -0.08 98
IV.FDMO.HHZ. 2021-09-12T08:47:57.51 0.1 undecidable manual P 342 0.1448 113 0.03 98
IV.NRCA.HHZ. 2021-09-12T08:47:57.70 0.3 undecidable manual S 202 0.0701 131 0.1 74
IV.NRCA.HHZ. 2021-09-12T08:47:56.20 0.1 undecidable manual P 202 0.0701 131 0.13 98
IV.MC2.EHZ. 2021-09-12T08:47:56.59 0.3 undecidable manual S 67 0.0315 153 -0.07 75
IV.MC2.EHZ. 2021-09-12T08:47:55.48 0.1 undecidable manual P 67 0.0315 153 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.2 0.0002985 0.5 AML other m 2021-09-12T08:47:57.90
IV.NRCA.HHE. ML:1.4 0.0005005 0.1 AML other m 2021-09-12T08:47:58.08
IV.FDMO.HHN. ML:0.4 2.635E-5 1.62 AML other m 2021-09-12T08:48:01.96
IV.FDMO.HHE. ML:0.5 2.94E-5 1.42 AML other m 2021-09-12T08:48:02.88
IV.GUMA.HHN. ML:1.3 0.0001415 0.22 AML other m 2021-09-12T08:48:03.23
IV.GUMA.HHE. ML:1.1 8.59182E-5 0.3392 AML other m 2021-09-12T08:48:03.64
IV.FIAM.HHN. ML:1.2 2.49E-5 0.74 AML other m 2021-09-12T08:48:19.70
IV.FIAM.HHE. ML:1.1 2.18E-5 0.9 AML other m 2021-09-12T08:48:24.47
IV.CSP1.EHE. ML:1 7.693549E-5 0.16 AML other m 2021-09-12T08:48:02.67
IV.CSP1.EHN. ML:1.1 8.3007845E-5 0.2624 AML other m 2021-09-12T08:48:03.73
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