ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.6 on date 13-12-2018 and time 18:18:41 (UTC) in region 4 km S Senigallia (AN)

A magnitude ML 1.6 earthquake occured in region: 4 km S Senigallia (AN), on

  • 13-12-2018 18:18:41 (UTC)
  • 13-12-2018 19:18:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.68, 13.21 at 16 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
Senigallia AN 4 45027 45027
Trecastelli AN 9 7625 52652
Ostra AN 9 6875 59527
Morro d'Alba AN 9 1903 61430
Montemarciano AN 9 9992 71422
Monte San Vito AN 10 6848 78270
San Marcello AN 12 2057 80327
Belvedere Ostrense AN 12 2234 82561
Mondolfo PU 12 14277 96838
Chiaravalle AN 13 14796 111634
Monsano AN 13 3405 115039
Monte Porzio PU 14 2836 117875
Corinaldo AN 14 4998 122873
San Costanzo PU 15 4786 127659
Ostra Vetere AN 15 3311 130970
Falconara Marittima AN 16 26565 157535
Camerata Picena AN 16 2567 160102
Jesi AN 18 40399 200501
Barbara AN 19 1368 201869
San Giorgio di Pesaro PU 19 1388 203257
Mondavio PU 20 3810 207067

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SE of Fano (60888 inhabitants)
26 Km W of Ancona (100861 inhabitants)
35 Km SE of Pesaro (94582 inhabitants)
67 Km SE of Rimini (147750 inhabitants)
91 Km NE of Foligno (57155 inhabitants)
92 Km NE of Perugia (166134 inhabitants)
93 Km SE of Cesena (96758 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 1.6 2018-12-13
18:18:41
43.68 13.21 16 2018-12-13
18:36:38
Sala Sismica INGV-Roma 63893301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-13 18:18:41 ± 0.25
Latitude 43.68 ± 0.01
Longitude 13.21 ± 0.01
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63893301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 965
Semi-minor axis of confidence ellipse (meter) 953
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 350
Circular confidence region, given by single value of horizontal uncertainty (meter) 960
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 138
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.77072
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 63893301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-13 18:36:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2018-12-13T18:19:08.16 3.0 undecidable manual S 0
IV.SEI.HHZ. 2018-12-13T18:19:07.27 3.0 undecidable manual P -0.16 0
IV.PIEI.HHZ. 2018-12-13T18:19:00.13 1.0 undecidable manual S 254 0.5126 97 0.62 20
IV.FOSV.EHZ. 2018-12-13T18:18:59.64 0.6 undecidable manual S 220 0.5072 97 0.28 44
IV.MTRA.EHZ. 2018-12-13T18:18:59.45 3.0 positive manual P -0.26 0
IV.SNTG.HHZ. 2018-12-13T18:18:58.52 0.6 undecidable manual S 205 0.4703 97 0.24 45
IV.ASSB.HHZ. 2018-12-13T18:18:56.00 3.0 undecidable manual P 0
IV.MC2.EHZ. 2018-12-13T18:18:56.63 0.6 undecidable manual P 181 0.7707 94 0.21 42
IV.MF5.EHZ. 2018-12-13T18:18:56.07 0.3 undecidable manual P 165 0.7168 94 0.57 58
IV.EL6.EHZ. 2018-12-13T18:18:55.11 0.6 undecidable manual S 193 0.3615 101 0.01 48
IV.GUMA.HHZ. 2018-12-13T18:18:54.27 3.0 positive manual P 0.28 0
IV.MPAG.EHZ. 2018-12-13T18:18:54.21 3.0 undecidable manual S 0
IV.AOI.HHZ. 2018-12-13T18:18:53.97 0.3 undecidable manual S 115 0.3103 103 0.36 67
IV.FDMO.HHZ. 2018-12-13T18:18:53.95 3.0 undecidable manual P 0
IV.PIEI.HHZ. 2018-12-13T18:18:52.23 0.6 undecidable manual P 254 0.5126 97 0.2 45
IV.ARVD.HHZ. 2018-12-13T18:18:51.84 0.3 undecidable manual S 227 0.2689 106 -0.59 64
IV.FOSV.EHZ. 2018-12-13T18:18:51.61 0.3 undecidable manual P 220 0.5072 97 -0.33 66
IV.MPAG.EHZ. 2018-12-13T18:18:50.80 3.0 undecidable manual P 0
IV.SNTG.HHZ. 2018-12-13T18:18:50.99 0.3 undecidable manual P 205 0.4703 97 -0.32 67
IV.COR1.EHZ. 2018-12-13T18:18:50.25 0.3 undecidable manual S 252 0.1619 121 0.75 62
IV.EL6.EHZ. 2018-12-13T18:18:49.12 0.1 negative manual P 193 0.3615 101 -0.36 90
IV.AOI.HHZ. 2018-12-13T18:18:48.62 0.3 undecidable manual P 115 0.3103 103 0 72
IV.ARVD.HHZ. 2018-12-13T18:18:47.50 0.1 negative manual P 227 0.2689 106 -0.44 90
IV.COR1.EHZ. 2018-12-13T18:18:46.45 0.1 undecidable manual P 252 0.1619 121 0.21 96
IV.SENI.EHZ. 2018-12-13T18:18:46.91 0.3 undecidable manual S 32 0.027 167 -0.19 73
IV.SENI.EHZ. 2018-12-13T18:18:44.72 0.1 undecidable manual P 32 0.027 167 -0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHE. ML:1.6 9.535E-5 0.22 AML other m 2018-12-13T18:19:01.91
IV.SENI.HNE. ML:3.3 0.02085 0.26 AML other m 2018-12-13T18:18:47.38
IV.SENI.HNN. ML:3.3 0.01955 0.28 AML other m 2018-12-13T18:18:47.36
IV.SENI.EHE. ML:2.6 0.00446 0.24 AML other m 2018-12-13T18:18:47.66
IV.COR1.EHN. ML:2 0.000796 0.24 AML other m 2018-12-13T18:18:50.51
IV.ARVD.HHN. ML:1.6 0.000164 0.7 AML other m 2018-12-13T18:18:52.02
IV.ARVD.HHE. ML:1.6 0.000163 0.48 AML other m 2018-12-13T18:18:52.50
IV.EL6.EHE. ML:1.9 0.000248 0.7 AML other m 2018-12-13T18:18:55.86
IV.SNTG.HHE. ML:1.7 0.0001105 0.62 AML other m 2018-12-13T18:18:59.40
IV.MURB.HHN. ML:1.9 0.0001285 1.24 AML other m 2018-12-13T18:19:06.30
IV.MURB.HHE. ML:2 0.0001585 0.28 AML other m 2018-12-13T18:19:06.44
IV.COR1.EHE. ML:1.6 0.0002869757 0.6528 AML other m 2018-12-13T18:18:50.84
IV.AOI.HHE. ML:1.6 0.00016745939 0.0768 AML other m 2018-12-13T18:18:54.00
IV.AOI.HHN. ML:1.7 0.0002017562 0.0896 AML other m 2018-12-13T18:18:54.83
IV.EL6.EHN. ML:1.8 0.00019136685 1.2544 AML other m 2018-12-13T18:18:55.79
IV.SNTG.HHN. ML:1.5 7.300879E-5 1.8432 AML other m 2018-12-13T18:18:59.23
IV.PIEI.HHN. ML:1.2 3.165163E-5 0.768 AML other m 2018-12-13T18:19:00.88
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