Earthquake with magnitude of ML 1.1 on date 09-08-2019 and time 12:23:21 (Italy) in region 2 km NW Castelsantangelo sul Nera (MC)

A magnitude ML 1.1 earthquake occured in region: 2 km NW Castelsantangelo sul Nera (MC), on

  • 09-08-2019 10:23:21 (UTC)
  • 09-08-2019 12:23:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.91, 13.13 at 10 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 2 281 281
Ussita MC 4 444 725
Visso MC 4 1107 1832
Preci PG 8 724 2556
Bolognola MC 13 142 2698
Norcia PG 13 4957 7655
Acquacanina MC 14 121 7776
Monte Cavallo MC 14 145 7921
Fiastra MC 14 559 8480
Fiordimonte MC 15 202 8682
Montemonaco AP 16 604 9286
Pieve Torina MC 17 1458 10744
Sellano PG 17 1079 11823
Pievebovigliana MC 18 866 12689
Montefortino FM 18 1178 13867
Montegallo AP 18 523 14390
Sarnano MC 20 3264 17654
Cerreto di Spoleto PG 20 1075 18729

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
55 Km NE of Terni (111501 inhabitants)
64 Km E of Perugia (166134 inhabitants)
66 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
100 Km NE of Viterbo (67173 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
Rev 100 ML 1.1 2019-08-09
10:23:21
42.91 13.13 10 2019-08-09
10:29:02
Sala Sismica INGV-Roma 71302881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-09 10:23:21 ± 0.07
Latitude 42.91 ± 0.00
Longitude 13.13 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71302881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 447
Semi-minor axis of confidence ellipse (meter) 378
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.27699
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 71302881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-09 10:29:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.GBOS.HHZ. 2019-08-09T10:24:50.40 3.0 undecidable manual Sn -1.41 0
MN.TRI.HHZ. 2019-08-09T10:24:48.60 3.0 undecidable manual Sg 10.79 0
IV.SCIAC.HHZ. 2019-08-09T10:24:40.92 3.0 positive manual Pg 10.39 0
IV.CRJA.HHZ. 2019-08-09T10:24:39.61 3.0 negative manual Pg 13.07 0
IV.HAGA.HHZ. 2019-08-09T10:24:35.25 3.0 positive manual Pn -3.36 0
IV.ALJA.HHZ. 2019-08-09T10:24:35.43 3.0 negative manual Pg 7.06 0
IV.MCRV.HHZ. 2019-08-09T10:24:23.31 3.0 undecidable manual Sn -8.23 0
ST.DOSS.HHZ. 2019-08-09T10:24:15.67 3.0 undecidable manual Pg 12.84 0
OX.ACOM.HHZ. 2019-08-09T10:24:10.58 3.0 negative manual Pn -0.68 0
MN.TRI.HHZ. 2019-08-09T10:24:10.64 3.0 positive manual Pg 9.9 0
IV.PTRJ.HNZ. 2019-08-09T10:23:47.83 3.0 undecidable manual Pg 0.92 0
IV.PE3.EHZ. 2019-08-09T10:23:33.75 3.0 undecidable manual Pg 2.65 0
IV.MF5.EHZ. 2019-08-09T10:23:32.14 0.6 undecidable manual S 72 0.2536 50 0.77 40
IV.GAVE.EHZ. 2019-08-09T10:23:31.95 0.3 undecidable manual S 219 0.277 50 -0.13 71
IV.CSP1.EHZ. 2019-08-09T10:23:29.16 0.3 undecidable manual S 16 0.1907 116 -0.3 70
IV.GAVE.EHZ. 2019-08-09T10:23:27.38 0.1 undecidable manual P 219 0.277 50 -0.13 95
IV.MMO1.EHZ. 2019-08-09T10:23:27.49 0.3 undecidable manual S 94 0.1439 123 -0.38 69
IT.MTCL.HGE. 2019-08-09T10:23:27.33 0.6 undecidable manual S 312 0.1286 126 -0.07 50
IV.MF5.EHZ. 2019-08-09T10:23:27.12 0.1 undecidable manual P 72 0.2536 50 0.02 98
IV.FDMO.HHE. 2019-08-09T10:23:27.34 0.6 undecidable manual S 346 0.1322 125 -0.16 49
IV.FEMA.HNE. 2019-08-09T10:23:26.24 0.6 undecidable manual S 312 0.08 139 0.23 48
IV.CSP1.EHZ. 2019-08-09T10:23:25.80 0.1 undecidable manual P 16 0.1907 116 -0.19 95
IV.NRCA.HHZ. 2019-08-09T10:23:25.80 0.3 undecidable manual S 189 0.0755 141 -0.1 74
IV.MC2.EHZ. 2019-08-09T10:23:25.56 0.3 undecidable manual S 86 0.0423 156 0.33 71
IV.FDMO.HHE. 2019-08-09T10:23:24.89 0.1 undecidable manual P 346 0.1322 125 0.03 100
IV.NRCA.HHZ. 2019-08-09T10:23:24.01 0.1 undecidable manual P 189 0.0755 141 0.07 100
IV.FEMA.HNE. 2019-08-09T10:23:24.23 0.1 undecidable manual P 312 0.08 139 0.23 97
IV.MMO1.EHZ. 2019-08-09T10:23:24.92 0.1 undecidable manual P 94 0.1439 123 -0.15 97
IT.MTCL.HGE. 2019-08-09T10:23:24.82 0.1 undecidable manual P 312 0.1286 126 0.02 100
IV.MC2.EHZ. 2019-08-09T10:23:23.76 0.1 undecidable manual P 86 0.0423 156 0.21 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.5 0.0004465 1.84 AML other m 2019-08-09T10:23:26.92
IV.NRCA.HHE. ML:1.3 0.0002545 1.84 AML other m 2019-08-09T10:23:26.03
IV.GAVE.EHE. ML:0.9 3.72E-5 0.22 AML other m 2019-08-09T10:23:32.65
IV.GAVE.EHN. ML:0.9 3.785E-5 0.48 AML other m 2019-08-09T10:23:36.30
IV.PTRJ.HNE. ML:3.7 0.0013965 0.42 AML other m 2019-08-09T10:24:05.38
IV.PTRJ.HNN. ML:3.6 0.001226 0.4 AML other m 2019-08-09T10:24:05.40
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