Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 18-10-2019 and time 06:00:16 (Italy) in region 5 km NE Serravalle di Chienti (MC)

A magnitude ML 0.9 earthquake occured in region: 5 km NE Serravalle di Chienti (MC), on

  • 18-10-2019 04:00:16 (UTC)
  • 18-10-2019 06:00:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.11, 12.99 at 13 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Serravalle di Chienti MC 5 1070 1070
Muccia MC 5 915 1985
Sefro MC 6 422 2407
Camerino MC 7 6974 9381
Pioraco MC 8 1134 10515
Pieve Torina MC 9 1458 11973
Pievebovigliana MC 9 866 12839
Fiuminata MC 10 1402 14241
Fiordimonte MC 11 202 14443
Monte Cavallo MC 13 145 14588
Castelraimondo MC 13 4587 19175
Fiastra MC 16 559 19734
Nocera Umbra PG 16 5839 25573
Gagliole MC 16 620 26193
Esanatoglia MC 17 2034 28227
Matelica MC 17 9981 38208
Acquacanina MC 17 121 38329
Serrapetrona MC 18 966 39295
Valtopina PG 20 1398 40693
Caldarola MC 20 1823 42516

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NE of Foligno (57155 inhabitants)
49 Km E of Perugia (166134 inhabitants)
67 Km NE of Terni (111501 inhabitants)
71 Km SW of Ancona (100861 inhabitants)
77 Km NW of Teramo (54892 inhabitants)
82 Km S of Fano (60888 inhabitants)
90 Km S of Pesaro (94582 inhabitants)
90 Km NW of L'Aquila (69753 inhabitants)
98 Km E of Arezzo (99543 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 0.9 2019-10-18
04:00:16		 43.11 12.99 13 2019-10-18
04:21:07		 Sala Sismica INGV-Roma 73317431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-18 04:00:16 ± 0.05
Latitude 43.11 ± 0.00
Longitude 12.99 ± 0.00
Depth (km) 13 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73317431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 379
Semi-minor axis of confidence ellipse (meter) 57
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 260
Circular confidence region, given by single value of horizontal uncertainty (meter) 380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.01439
Epicentral distance of station farthest from the epicenter (degree) 0.28778
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 73317431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-18 04:21:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2019-10-18T04:00:27.29 0.6 undecidable manual S 161 0.2878 95 -0.01 48
IV.EL6.EHZ. 2019-10-18T04:00:25.95 0.6 undecidable manual S 20 0.2374 97 0.12 47
IV.SNTG.HHZ. 2019-10-18T04:00:23.04 0.6 undecidable manual S 347 0.1529 108 -0.32 46
IV.CSP1.EHZ. 2019-10-18T04:00:23.66 0.6 undecidable manual S 95 0.1583 106 0.13 47
IV.ASSB.HHZ. 2019-10-18T04:00:22.09 0.1 undecidable manual P 255 0.2491 96 0.09 96
IV.CESI.HHZ. 2019-10-18T04:00:22.57 0.6 undecidable manual S 211 0.1187 119 0.15 49
IV.NRCA.HHZ. 2019-10-18T04:00:22.55 0.1 positive manual P 161 0.2878 95 -0.1 94
IV.MC2.EHN. 2019-10-18T04:00:21.64 0.1 undecidable manual P 143 0.2437 97 -0.27 92
IV.FDMO.HHE. 2019-10-18T04:00:21.76 0.6 undecidable manual S 134 0.0998 126 -0.21 48
IV.EL6.EHZ. 2019-10-18T04:00:21.85 0.6 positive manual P 20 0.2374 97 0.04 48
IV.SNTG.HHZ. 2019-10-18T04:00:20.41 0.3 negative manual P 347 0.1529 108 0.03 73
IV.CSP1.EHZ. 2019-10-18T04:00:20.67 1.0 undecidable manual P 95 0.1583 106 0.19 23
IV.MML1.HNE. 2019-10-18T04:00:20.55 0.6 undecidable manual S 301 0.0144 171 -0.06 49
IV.CESI.HHZ. 2019-10-18T04:00:20.01 0.1 positive manual P 211 0.1187 119 0.17 96
IV.SEF1.HNZ. 2019-10-18T04:00:20.83 0.6 undecidable manual S 324 0.0504 150 -0.14 48
IV.FDMO.HHE. 2019-10-18T04:00:19.60 0.1 undecidable manual P 134 0.0998 126 0.02 99
IT.MTCL.HGN. 2019-10-18T04:00:19.81 0.1 undecidable manual P 176 0.1124 121 0.06 99
IV.SEF1.HNZ. 2019-10-18T04:00:18.99 0.1 undecidable manual P 324 0.0504 150 -0.01 99
IV.MML1.HNE. 2019-10-18T04:00:18.88 0.1 undecidable manual P 301 0.0144 171 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1 9.75E-5 0.1 AML other m 2019-10-18T04:00:22.60
IV.CESI.HHE. ML:1.1 0.0001302 0.44 AML other m 2019-10-18T04:00:22.63
IV.SNTG.HHE. ML:0.8 5.65E-5 0.12 AML other m 2019-10-18T04:00:23.39
IV.SNTG.HHN. ML:0.8 5.165E-5 0.14 AML other m 2019-10-18T04:00:23.41
IV.NRCA.HHE. ML:0.7 1.84E-5 0.56 AML other m 2019-10-18T04:00:28.27
IV.NRCA.HHN. ML:0.7 1.845E-5 0.92 AML other m 2019-10-18T04:00:28.35
IV.ATMI.HHE. ML:1.8 0.00011885 0.66 AML other m 2019-10-18T04:00:35.46
IV.ATMI.HHN. ML:1.6 7.94E-5 0.18 AML other m 2019-10-18T04:00:36.13
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