Earthquake with magnitude of ML 1.7 on date 15-12-2017 and time 09:20:07 (Italy) in region 4 km SW Fiastra (MC)

A magnitude ML 1.7 earthquake occured in region: 4 km SW Fiastra (MC), on

  • 15-12-2017 08:20:07 (UTC)
  • 15-12-2017 09:20:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43, 13.13 at 8 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
Fiastra MC 5 559 559
Acquacanina MC 5 121 680
Fiordimonte MC 5 202 882
Ussita MC 6 444 1326
Pievebovigliana MC 8 866 2192
Bolognola MC 8 142 2334
Pieve Torina MC 8 1458 3792
Visso MC 8 1107 4899
Monte Cavallo MC 11 145 5044
Muccia MC 11 915 5959
Castelsantangelo sul Nera MC 12 281 6240
Sarnano MC 15 3264 9504
Preci PG 15 724 10228
Camerino MC 16 6974 17202
Cessapalombo MC 16 512 17714
Serravalle di Chienti MC 17 1070 18784
Caldarola MC 17 1823 20607
Camporotondo di Fiastrone MC 18 563 21170
Montefortino FM 18 1178 22348
Gualdo MC 19 815 23163
Amandola FM 19 3629 26792
San Ginesio MC 19 3498 30290
Montemonaco AP 20 604 30894

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
60 Km NW of Teramo (54892 inhabitants)
61 Km E of Perugia (166134 inhabitants)
63 Km NE of Terni (111501 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
75 Km N of L'Aquila (69753 inhabitants)
94 Km S of Fano (60888 inhabitants)
99 Km NW of Montesilvano (53738 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 1.7 2017-12-15
08:20:07
43 13.13 9 2017-12-15
08:37:05
Sala Sismica INGV-Roma 52603561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-12-15 08:20:07 ± 0.11
Latitude 43.00 ± 0.01
Longitude 13.13 ± 0.01
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 52603561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 935
Semi-minor axis of confidence ellipse (meter) 439
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 193
Circular confidence region, given by single value of horizontal uncertainty (meter) 940
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 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37682
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 52603561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-12-15 08:37:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PCRO.HNZ. 2017-12-15T08:20:28.51 3.0 undecidable manual S -0.78 0
IV.CING.HHZ. 2017-12-15T08:20:21.62 0.3 undecidable manual S 7 0.3768 50 0.12 70
IV.ASSB.HHZ. 2017-12-15T08:20:20.73 0.6 undecidable manual S 277 0.3471 50 0.11 47
IV.MF5.EHZ. 2017-12-15T08:20:17.76 0.3 undecidable manual S 93 0.241 108 0.72 61
IV.CING.HHZ. 2017-12-15T08:20:15.14 0.1 undecidable manual P 7 0.3768 50 -0.36 89
IV.CESI.HHZ. 2017-12-15T08:20:14.89 0.3 undecidable manual S 271 0.1655 115 0.58 65
IV.MMO1.EHZ. 2017-12-15T08:20:14.37 0.3 undecidable manual S 125 0.1763 113 -0.33 70
IV.ASSB.HHZ. 2017-12-15T08:20:14.79 0.1 undecidable manual P 277 0.3471 50 -0.2 93
IV.MF5.EHZ. 2017-12-15T08:20:13.28 0.1 undecidable manual P 93 0.241 108 0.35 92
IV.MMO1.EHZ. 2017-12-15T08:20:11.27 0.1 undecidable manual P 125 0.1763 113 -0.3 94
IV.NRCA.HHZ. 2017-12-15T08:20:11.30 0.1 undecidable manual P 184 0.1682 114 -0.11 98
IV.CESI.HHZ. 2017-12-15T08:20:11.62 0.1 undecidable manual P 271 0.1655 115 0.27 95
IV.MC2.EHZ. 2017-12-15T08:20:10.13 0.6 undecidable manual P 155 0.0998 128 0.04 50
IV.FDMO.HHZ. 2017-12-15T08:20:10.29 0.3 undecidable manual S 318 0.0468 148 -0.47 69
IV.FDMO.HHZ. 2017-12-15T08:20:09.19 0.1 undecidable manual P 318 0.0468 148 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0 0.002574506 0.28 AML other m 2017-12-15T08:20:10.68
IV.FDMO.HHE. ML:0 0.003459798 0.22 AML other m 2017-12-15T08:20:10.70
IV.NRCA.HHE. ML:0 0.00035002835 0.14 AML other m 2017-12-15T08:20:17.41
IV.NRCA.HHN. ML:0 0.00031750775 0.14 AML other m 2017-12-15T08:20:16.55
IV.NRCA.HNE. ML:0 0.0003285059 0.16 AML other m 2017-12-15T08:20:17.28
IV.NRCA.HNN. ML:0 0.00030803375 0.15 AML other m 2017-12-15T08:20:16.48
IV.CESI.HHE. ML:0 0.00034527495 0.18 AML other m 2017-12-15T08:20:14.99
IV.CESI.HHN. ML:0 0.0003484854 0.2 AML other m 2017-12-15T08:20:15.01
IV.MF5.EHE. ML:0 0.000283959 0.32 AML other m 2017-12-15T08:20:18.39
IV.MF5.EHN. ML:0 0.00020361885 0.52 AML other m 2017-12-15T08:20:18.16
IV.ASSB.HHN. ML:0 0.0001839343 0.44 AML other m 2017-12-15T08:20:20.91
IV.ASSB.HHE. ML:0 0.00022441245 0.24 AML other m 2017-12-15T08:20:21.06
IV.CING.HHN. ML:0 0.00010570115 0.16 AML other m 2017-12-15T08:20:22.78
IV.CING.HHE. ML:0 0.0001509938 0.12 AML other m 2017-12-15T08:20:22.51
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