ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.7 on date 18-12-2018 and time 20:38:09 (Italy) in region 2 km N Montelupone (MC)

A magnitude ML 1.7 earthquake occured in region: 2 km N Montelupone (MC), on

  • 18-12-2018 19:38:09 (UTC)
  • 18-12-2018 20:38:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.37, 13.56 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
Montelupone MC 2 3596 3596
Recanati MC 4 21349 24945
Potenza Picena MC 5 15936 40881
Morrovalle MC 6 10195 51076
Montecosaro MC 8 7113 58189
Loreto AN 9 12814 71003
Montecassiano MC 10 7125 78128
Porto Recanati MC 11 12531 90659
Castelfidardo AN 11 18733 109392
Montefano MC 11 3541 112933
Macerata MC 12 42473 155406
Corridonia MC 14 15430 170836
Monte San Giusto MC 15 8191 179027
Osimo AN 15 34977 214004
Civitanova Marche MC 15 41983 255987
Montegranaro FM 16 12990 268977
Numana AN 17 3775 272752
Appignano MC 18 4213 276965
Petriolo MC 18 1998 278963
Sant'Elpidio a Mare FM 18 17110 296073
Camerano AN 18 7322 303395
Sirolo AN 18 4051 307446
Filottrano AN 19 9499 316945
Monte San Pietrangeli FM 19 2458 319403
Francavilla d'Ete FM 20 964 320367
Monte Urano FM 20 8353 328720
Porto Sant'Elpidio FM 20 26152 354872

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km S of Ancona (100861 inhabitants)
69 Km SE of Fano (60888 inhabitants)
79 Km N of Teramo (54892 inhabitants)
80 Km SE of Pesaro (94582 inhabitants)
83 Km NE of Foligno (57155 inhabitants)
99 Km E of Perugia (166134 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 2018-12-18
19:38:09
43.37 13.56 10 2018-12-18
19:51:41
Sala Sismica INGV-Roma 63987651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-18 19:38:09 ± 0.09
Latitude 43.37 ± 0.00
Longitude 13.56 ± 0.02
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63987651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1417
Semi-minor axis of confidence ellipse (meter) 517
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 86
Circular confidence region, given by single value of horizontal uncertainty (meter) 1420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.03507
Epicentral distance of station farthest from the epicenter (degree) 0.62503
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:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 63987651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-18 19:51:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MC2.EHZ. 2018-12-18T19:38:28.56 0.6 undecidable manual S 211 0.5306 50 0.46 42
IV.ARVD.HHZ. 2018-12-18T19:38:26.84 1.0 undecidable manual S 286 0.4703 50 0.53 21
IV.MF5.EHZ. 2018-12-18T19:38:23.90 0.6 undecidable manual S 191 0.3858 50 0.08 46
IV.GUMA.HHZ. 2018-12-18T19:38:23.02 0.6 undecidable manual S 209 0.3462 50 0.38 44
IV.EL6.EHZ. 2018-12-18T19:38:22.67 0.6 undecidable manual S 264 0.3381 50 0.28 47
IV.NRCA.HHZ. 2018-12-18T19:38:21.74 0.3 undecidable manual P 212 0.625 50 -0.15 67
IV.ARVD.HHZ. 2018-12-18T19:38:19.16 0.3 undecidable manual P 286 0.4703 50 -0.08 70
IV.MNTP.HNZ. 2018-12-18T19:38:19.80 0.3 undecidable manual S 197 0.2392 110 0.45 67
IV.MC2.EHZ. 2018-12-18T19:38:19.81 0.6 undecidable manual P 211 0.5306 50 -0.46 43
IV.PCRO.HNZ. 2018-12-18T19:38:19.77 0.3 undecidable manual S 355 0.2419 109 0.31 66
IV.MF5.EHZ. 2018-12-18T19:38:17.45 0.3 undecidable manual P 191 0.3858 50 -0.34 69
IV.AOI.HHZ. 2018-12-18T19:38:17.24 0.6 undecidable manual S 9 0.1862 115 -0.2 48
IV.EL6.EHZ. 2018-12-18T19:38:16.75 0.3 undecidable manual P 264 0.3381 50 -0.22 69
IV.GUMA.HHZ. 2018-12-18T19:38:16.74 0.3 undecidable manual P 209 0.3462 50 -0.37 68
IV.CIMA.HNZ. 2018-12-18T19:38:15.16 0.6 undecidable manual S 128 0.0989 131 0.56 45
IV.PCRO.HNZ. 2018-12-18T19:38:15.77 0.3 undecidable manual P 355 0.2419 109 0.49 63
IV.MNTP.HNZ. 2018-12-18T19:38:14.79 0.3 undecidable manual P 197 0.2392 110 -0.43 68
IV.PP3.HNZ. 2018-12-18T19:38:13.44 0.3 undecidable manual S 71 0.0351 158 0.31 75
IV.AOI.HHZ. 2018-12-18T19:38:13.79 0.3 undecidable manual P 9 0.1862 115 -0.33 70
IV.CIMA.HNZ. 2018-12-18T19:38:12.35 0.1 undecidable manual P 128 0.0989 131 -0.12 100
IV.PP3.HNZ. 2018-12-18T19:38:11.51 0.1 undecidable manual P 71 0.0351 158 -0.12 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SENI.HNE. ML:2.9 0.00216 0.6 AML other m 2018-12-18T19:38:31.63
IV.SENI.HNN. ML:0 0.002345 0.2 AML other m 2018-12-18T19:38:32.96
IV.CIMA.HNN. ML:1.7 0.0006354485 0.1152 AML other m 2018-12-18T19:38:15.67
IV.CIMA.HNE. ML:1.7 0.0006164876 0.1536 AML other m 2018-12-18T19:38:15.33
IV.AOI.HHE. ML:1.7 0.00039858055 0.1408 AML other m 2018-12-18T19:38:18.02
IV.AOI.HHN. ML:1.6 0.00029414207 0.1024 AML other m 2018-12-18T19:38:18.13
IV.GUMA.HHN. ML:1.9 0.0002809819 0.1664 AML other m 2018-12-18T19:38:24.19
IV.GUMA.HNE. ML:1.8 0.00022473965 0.5632 AML other m 2018-12-18T19:38:29.67
IV.GUMA.HHE. ML:1.8 0.00020664205 0.1792 AML other m 2018-12-18T19:38:24.13
IV.GUMA.HNN. ML:2.1 0.00051249855 0.768 AML other m 2018-12-18T19:38:26.27
IV.EL6.EHE. ML:1.4 9.9167345E-5 1.2416 AML other m 2018-12-18T19:38:18.01
IV.EL6.EHN. ML:1.2 6.137847E-5 0.1536 AML other m 2018-12-18T19:38:26.09
IV.MF5.EHE. ML:1.7 0.00016453335 1.8688 AML other m 2018-12-18T19:38:17.71
IV.MF5.EHN. ML:1.4 8.996821E-5 0.7168 AML other m 2018-12-18T19:38:25.01
IV.ARVD.HHE. ML:1 2.5095027E-5 0.2432 AML other m 2018-12-18T19:38:28.50
IV.NRCA.HHE. ML:2.1 0.0001936841 0.1408 AML other m 2018-12-18T19:38:33.08
IV.NRCA.HNE. ML:2.1 0.0002213027 0.1664 AML other m 2018-12-18T19:38:33.16
IV.NRCA.HHN. ML:1.9 0.00014665425 0.1152 AML other m 2018-12-18T19:38:33.21
IV.NRCA.HNN. ML:2.1 0.0002068671 0.64 AML other m 2018-12-18T19:38:25.79
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