Earthquake with magnitude of ML 1.1 on date 25-07-2017 and time 07:26:34 (Italy) in region 6 km E Castelsantangelo sul Nera (MC)

A magnitude ML 1.1 earthquake occured in region: 6 km E Castelsantangelo sul Nera (MC), on

  • 25-07-2017 05:26:34 (UTC)
  • 25-07-2017 07:26:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.92, 13.22 at 4 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 6 281 281
Ussita MC 7 444 725
Bolognola MC 9 142 867
Montemonaco AP 9 604 1471
Montefortino FM 10 1178 2649
Visso MC 11 1107 3756
Montegallo AP 12 523 4279
Acquacanina MC 13 121 4400
Amandola FM 13 3629 8029
Fiastra MC 14 559 8588
Sarnano MC 15 3264 11852
Preci PG 15 724 12576
Comunanza AP 16 3166 15742
Arquata del Tronto AP 17 1178 16920
Norcia PG 17 4957 21877
Fiordimonte MC 17 202 22079
Gualdo MC 19 815 22894
Palmiano AP 20 196 23090
Pievebovigliana MC 20 866 23956
Monte Cavallo MC 20 145 24101
Pieve Torina MC 20 1458 25559

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
49 Km NW of Teramo (54892 inhabitants)
61 Km NE of Terni (111501 inhabitants)
64 Km N of L'Aquila (69753 inhabitants)
71 Km E of Perugia (166134 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
88 Km NW of Montesilvano (53738 inhabitants)
95 Km NW of Pescara (121014 inhabitants)
100 Km NW of Chieti (51815 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 2017-07-25
05:26:34
42.92 13.22 4 2017-07-25
05:32:21
Sala Sismica INGV-Roma 48304771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-07-25 05:26:34 ± 0.24
Latitude 42.92 ± 0.00
Longitude 13.22 ± 0.01
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 48304771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 547
Semi-minor axis of confidence ellipse (meter) 351
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 131
Circular confidence region, given by single value of horizontal uncertainty (meter) 550
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.08993
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 48304771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-07-25 05:32:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MCRV.HHZ. 2017-07-25T05:27:40.44 3.0 undecidable manual Sn -0.02 0
IV.CRMI.HHZ. 2017-07-25T05:27:03.28 3.0 undecidable manual Pn 0.45 0
IV.NARO.HHZ. 2017-07-25T05:27:02.20 3.0 undecidable manual S -0.05 0
IV.PARC.HHZ. 2017-07-25T05:26:53.96 3.0 negative manual P 2.67 0
IV.MA9.HHZ. 2017-07-25T05:26:52.28 3.0 undecidable manual P -0.4 0
IV.RM33.EHZ. 2017-07-25T05:26:48.63 3.0 undecidable manual S 2.22 0
IV.FSSB.HHZ. 2017-07-25T05:26:48.70 3.0 undecidable manual P 0.23 0
IV.FOSV.EHZ. 2017-07-25T05:26:43.75 3.0 undecidable manual P 0.15 0
IV.RM33.HNZ. 2017-07-25T05:26:39.78 3.0 undecidable manual P 0.09 0
IV.TERO.HNZ. 2017-07-25T05:26:38.41 3.0 undecidable manual P -0.02 0
IV.T1219.EHZ. 2017-07-25T05:26:38.39 3.0 positive manual P -0.11 0
IV.T1256.HHZ. 2017-07-25T05:26:38.07 0.3 undecidable manual S 2 0.0899 110 0.36 70
IV.MMO1.EHZ. 2017-07-25T05:26:37.36 0.1 undecidable manual S 102 0.0791 112 0.03 100
IV.T1245.HHZ. 2017-07-25T05:26:37.06 0.3 undecidable manual S 202 0.0648 117 0.24 72
IV.FDMO.HHZ. 2017-07-25T05:26:37.22 3.0 negative manual P -0.29 0
IV.NRCA.HHZ. 2017-07-25T05:26:36.69 3.0 negative manual P 0.19 0
IV.MMO1.EHZ. 2017-07-25T05:26:35.83 0.1 undecidable manual P 102 0.0791 112 -0.11 98
IV.T1245.HHZ. 2017-07-25T05:26:35.70 0.1 undecidable manual P 202 0.0648 117 0.06 100
IV.MC2.EHZ. 2017-07-25T05:26:35.50 0.3 undecidable manual S 258 0.0243 144 -0.09 75
IV.T1256.HHZ. 2017-07-25T05:26:35.98 0.1 undecidable manual P 2 0.0899 110 -0.17 97
IV.MC2.EHZ. 2017-07-25T05:26:34.77 0.1 undecidable manual P 258 0.0243 144 -0.16 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1245.HHN. ML:0 0.0003265 0.42 AML other m 2017-07-25T05:26:38.22
IV.T1245.HHE. ML:0 0.000258 1.14 AML other m 2017-07-25T05:26:38.99
IV.T1256.HHN. ML:0.8 0.0001125 1.5 AML other m 2017-07-25T05:26:39.04
IV.T1256.HHE. ML:0.8 0.0001113 0.54 AML other m 2017-07-25T05:26:39.41
IV.NRCA.HHE. ML:1.1 0.000174 0.12 AML other m 2017-07-25T05:26:39.75
IV.NRCA.HHN. ML:0.9 0.00011025 0.7 AML other m 2017-07-25T05:26:40.51
IV.NARO.HHE. ML:1.6 4.3E-5 0.5 AML other m 2017-07-25T05:27:04.08
IV.NARO.HHN. ML:1.5 3.39E-5 0.5 AML other m 2017-07-25T05:27:04.66
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