INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.6 on date 09-12-2018 and time 18:12:28 (Italy) in region 5 km SW Acquacanina (MC)

A magnitude ML 1.6 earthquake occured in region: 5 km SW Acquacanina (MC), on

  • 09-12-2018 17:12:28 (UTC)
  • 09-12-2018 18:12:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.99, 13.15 at 9 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
Acquacanina MC 5 121 121
Fiastra MC 5 559 680
Ussita MC 5 444 1124
Bolognola MC 7 142 1266
Fiordimonte MC 7 202 1468
Visso MC 8 1107 2575
Pievebovigliana MC 9 866 3441
Pieve Torina MC 10 1458 4899
Castelsantangelo sul Nera MC 11 281 5180
Monte Cavallo MC 12 145 5325
Muccia MC 13 915 6240
Sarnano MC 13 3264 9504
Preci PG 15 724 10228
Cessapalombo MC 16 512 10740
Montefortino FM 17 1178 11918
Amandola FM 17 3629 15547
Camerino MC 17 6974 22521
Caldarola MC 18 1823 24344
Gualdo MC 18 815 25159
Montemonaco AP 18 604 25763
Serravalle di Chienti MC 18 1070 26833
Camporotondo di Fiastrone MC 18 563 27396
San Ginesio MC 19 3498 30894

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
59 Km NW of Teramo (54892 inhabitants)
63 Km E of Perugia (166134 inhabitants)
63 Km NE of Terni (111501 inhabitants)
74 Km N of L'Aquila (69753 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
95 Km S of Fano (60888 inhabitants)
98 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 1.6 2018-12-09
17:12:28
42.99 13.15 9 2018-12-09
17:20:56
Sala Sismica INGV-Roma 63794831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-09 17:12:28 ± 0.07
Latitude 42.99 ± 0.00
Longitude 13.15 ± 0.00
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 63794831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 366
Semi-minor axis of confidence ellipse (meter) 64
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 46
Circular confidence region, given by single value of horizontal uncertainty (meter) 370
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41279
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 63794831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-09 17:20:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2018-12-09T17:12:54.54 3.0 undecidable manual S 0.39 0
IV.MURB.HHZ. 2018-12-09T17:12:39.69 3.0 positive manual P 0.03 0
IV.ATCC.EHZ. 2018-12-09T17:12:38.06 3.0 undecidable manual P 0.48 0
IV.FOSV.EHZ. 2018-12-09T17:12:37.52 1.0 negative manual P 317 0.4128 50 0.14 23
IV.ASSB.HHZ. 2018-12-09T17:12:36.49 0.6 undecidable manual P 278 0.3606 50 -0.01 48
IV.GAVE.EHZ. 2018-12-09T17:12:36.13 1.0 undecidable manual P 212 0.3534 50 -0.25 23
IV.MOMA.HHZ. 2018-12-09T17:12:36.41 3.0 undecidable manual P -1.84 0
IV.NRCA.HHZ. 2018-12-09T17:12:35.57 0.6 undecidable manual S 189 0.1619 115 0.08 50
IV.EL6.EHZ. 2018-12-09T17:12:35.87 3.0 undecidable manual P -0.44 0
IV.MMO1.EHZ. 2018-12-09T17:12:35.24 0.3 undecidable manual S 126 0.161 116 -0.23 72
IV.SNTG.HHZ. 2018-12-09T17:12:35.16 0.6 undecidable manual P 330 0.3022 50 -0.33 46
IV.MF5.EHZ. 2018-12-09T17:12:34.32 1.0 positive manual P 91 0.2284 109 0.38 23
IV.FEMA.HNZ. 2018-12-09T17:12:33.00 0.6 undecidable manual S 246 0.0782 135 0.18 49
IV.CSP1.EHZ. 2018-12-09T17:12:33.66 0.6 undecidable manual S 23 0.107 126 0 51
IT.MTCL.HGZ. 2018-12-09T17:12:33.67 0.6 undecidable manual S 270 0.1088 125 -0.04 51
IV.MML1.HNZ. 2018-12-09T17:12:32.91 0.3 undecidable manual P 313 0.1763 114 0.05 75
IV.NRCA.HHZ. 2018-12-09T17:12:32.51 0.3 undecidable manual P 189 0.1619 115 -0.06 75
IV.GUMA.HHZ. 2018-12-09T17:12:32.89 0.6 undecidable manual P 63 0.1538 117 0.49 46
IV.FDMO.HHZ. 2018-12-09T17:12:32.10 0.3 undecidable manual S 314 0.0621 141 -0.29 73
IV.MMO1.EHZ. 2018-12-09T17:12:32.55 0.3 negative manual P 126 0.161 116 -0.01 75
IV.MC2.EHZ. 2018-12-09T17:12:32.78 1.0 undecidable manual S 160 0.0872 131 -0.29 24
IV.CSP1.EHZ. 2018-12-09T17:12:31.61 0.6 undecidable manual P 23 0.107 126 0.09 50
IT.MTCL.HGZ. 2018-12-09T17:12:31.68 0.6 undecidable manual P 270 0.1088 125 0.13 50
IV.MC2.EHZ. 2018-12-09T17:12:31.17 0.3 positive manual P 160 0.0872 131 -0.01 77
IV.FEMA.HNZ. 2018-12-09T17:12:31.27 0.1 undecidable manual P 246 0.0782 135 0.24 97
IV.FDMO.HHZ. 2018-12-09T17:12:30.65 0.1 positive manual P 314 0.0621 141 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.9 0.00129696205 0.2176 AML other m 2018-12-09T17:12:32.39
IV.FDMO.HHE. ML:2 0.001644124 0.192 AML other m 2018-12-09T17:12:32.43
IV.CSP1.EHN. ML:1.8 0.000840408145 0.1664 AML other m 2018-12-09T17:12:34.11
IV.CSP1.EHE. ML:1.6 0.0005087525 0.9472 AML other m 2018-12-09T17:12:34.25
IV.NRCA.HNE. ML:1.6 0.00034530285 0.1536 AML other m 2018-12-09T17:12:37.72
IV.NRCA.HNN. ML:1.6 0.00034550825 0.1792 AML other m 2018-12-09T17:12:38.32
IV.NRCA.HHN. ML:1.6 0.00032295285 0.1152 AML other m 2018-12-09T17:12:38.32
IV.NRCA.HHE. ML:1.6 0.00035457635 0.0768 AML other m 2018-12-09T17:12:37.89
IV.MF5.EHE. ML:1.7 0.00027649565 0.2432 AML other m 2018-12-09T17:12:39.42
IV.MF5.EHN. ML:1.5 0.0001877074 0.384 AML other m 2018-12-09T17:12:40.67
IV.SNTG.HNE. ML:1.5 0.0001471281 0.3712 AML other m 2018-12-09T17:12:45.08
IV.SNTG.HHE. ML:1.1 4.85765E-5 0.1024 AML other m 2018-12-09T17:12:42.25
IV.SNTG.HNN. ML:1.7 0.00022720185 1.1264 AML other m 2018-12-09T17:12:48.06
IV.SNTG.HHN. ML:1.3 8.0398875E-5 0.1408 AML other m 2018-12-09T17:12:41.79
IV.EL6.EHE. ML:1.5 0.00011032155 0.1792 AML other m 2018-12-09T17:12:43.68
IV.EL6.EHN. ML:1.5 0.00010965533 0.2432 AML other m 2018-12-09T17:12:42.22
IV.GAVE.EHN. ML:1.5 0.00010973715 0.1792 AML other m 2018-12-09T17:12:44.61
IV.GAVE.EHE. ML:1.6 0.0001380937 0.1536 AML other m 2018-12-09T17:12:42.89
IV.ASSB.HHN. ML:1.6 0.00013327585 0.3072 AML other m 2018-12-09T17:12:43.84
IV.ASSB.HHE. ML:1.6 0.000148780155 0.2432 AML other m 2018-12-09T17:12:42.67
IV.FOSV.EHN. ML:1.5 0.000102010375 0.2816 AML other m 2018-12-09T17:12:46.05
IV.FOSV.EHE. ML:1.1 3.968169E-5 0.128 AML other m 2018-12-09T17:12:44.77
IV.ATCC.EHN. ML:1.5 8.6276435E-5 0.2816 AML other m 2018-12-09T17:12:44.90
IV.ATCC.EHE. ML:1.5 0.000100707023 0.2688 AML other m 2018-12-09T17:12:44.95
IV.MURB.HHN. ML:1.6 9.636723575E-5 0.3968 AML other m 2018-12-09T17:12:51.55
IV.MURB.HNN. ML:2 0.0001946393 0.6656 AML other m 2018-12-09T17:12:55.20
IV.MURB.HNE. ML:1.8 0.000144851055 0.4608 AML other m 2018-12-09T17:13:06.09
IV.MURB.HHE. ML:1.6 9.4218325E-5 0.2944 AML other m 2018-12-09T17:12:49.24
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