Earthquake with magnitude of ML 1.8 on date 18-11-2020 and time 18:21:32 (Italy) in region 6 km SE Borgo Val di Taro (PR)

A magnitude ML 1.8 earthquake occured in region: 6 km SE Borgo Val di Taro (PR), on

  • 18-11-2020 17:21:32 (UTC)
  • 18-11-2020 18:21:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.44, 9.79 at 57 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
Borgo Val di Taro PR 6 6999 6999
Albareto PR 7 2156 9155
Zeri MS 9 1094 10249
Pontremoli MS 10 7357 17606
Compiano PR 12 1112 18718
Tornolo PR 14 1010 19728
Bedonia PR 15 3482 23210
Mulazzo MS 16 2424 25634
Filattiera MS 16 2309 27943
Valmozzola PR 17 539 28482
Varese Ligure SP 17 2059 30541
Zignago SP 18 532 31073
Berceto PR 18 2109 33182
Sesta Godano SP 18 1377 34559

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km N of La Spezia (93959 inhabitants)
47 Km NW of Carrara (63133 inhabitants)
52 Km NW of Massa (69479 inhabitants)
59 Km SW of Parma (192836 inhabitants)
68 Km E of Genova (586655 inhabitants)
69 Km S of Piacenza (102191 inhabitants)
73 Km W of Reggio nell'Emilia (171345 inhabitants)
73 Km NW of Viareggio (62467 inhabitants)
80 Km S of Cremona (71901 inhabitants)
87 Km NW of Lucca (89046 inhabitants)
93 Km W of Modena (184973 inhabitants)
94 Km NW of Pisa (89158 inhabitants)
95 Km W of Carpi (70699 inhabitants)
97 Km SE of Pavia (72576 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
Reviewed
Rev100
ML 1.8 2020-11-18
17:21:32
44.44 9.79 57 2020-11-18
17:42:11
Sala Sismica INGV-Roma 84829121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-18 17:21:32 ± 0.3
Latitude 44.44 ± 0.02
Longitude 9.79 ± 0.02
Depth (km) 57 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84829121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1791
Semi-minor axis of confidence ellipse (meter) 1493
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 1790
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.7941
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 84829121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-18 17:42:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LRP.EHZ. 2020-11-18T17:22:32.54 3.0 undecidable manual Pn 0.73 0
ST.CARE.EHZ. 2020-11-18T17:22:25.72 3.0 undecidable manual Sn -0.15 0
IV.ATPI.EHZ. 2020-11-18T17:22:11.45 3.0 undecidable manual Pg 5.18 0
GU.POPM.HHZ. 2020-11-18T17:22:01.02 0.1 undecidable manual S 119 0.7941 111 1.07 67
IV.VARE.HHZ. 2020-11-18T17:21:57.21 3.0 undecidable manual Pn 0.02 0
GU.CARD.HHE. 2020-11-18T17:21:56.55 0.1 undecidable manual S 129 0.6421 118 -0.08 93
GU.RNCA.HHE. 2020-11-18T17:21:55.68 0.3 undecidable manual S 274 0.5998 120 -0.06 72
GU.SARM.EHE. 2020-11-18T17:21:54.09 0.3 undecidable manual S 120 0.5036 126 0.29 70
IV.MAGA.HHZ. 2020-11-18T17:21:54.17 3.0 positive manual Pn 0 0
IV.QLNO.HHZ. 2020-11-18T17:21:52.53 3.0 negative manual Pn -0.39 0
GU.GORR.HHZ. 2020-11-18T17:21:52.44 0.1 undecidable manual S 296 0.3939 135 0.65 84
IV.BOB.HHE. 2020-11-18T17:21:52.32 0.1 undecidable manual S 324 0.4119 133 0.22 95
IV.PLMA.HHZ. 2020-11-18T17:21:51.75 0.1 undecidable manual S 173 0.3885 135 0.05 100
GU.EQUI.HHE. 2020-11-18T17:21:51.74 0.1 undecidable manual S 136 0.3741 136 0.28 96
GU.POPM.HHZ. 2020-11-18T17:21:48.80 0.3 negative manual P 119 0.7941 111 0.29 66
GU.GRAM.HHZ. 2020-11-18T17:21:48.49 0.1 undecidable manual S 74 0.2041 154 -0.63 88
GU.CARD.HHE. 2020-11-18T17:21:46.08 0.3 undecidable manual P 129 0.6421 118 -0.52 64
GU.RNCA.HHE. 2020-11-18T17:21:45.60 0.1 undecidable manual P 274 0.5998 120 -0.48 89
GU.SARM.EHE. 2020-11-18T17:21:44.85 0.1 undecidable manual P 120 0.5036 126 -0.11 96
GU.GORR.HHZ. 2020-11-18T17:21:44.01 0.1 undecidable manual P 296 0.3939 135 0.21 96
IV.BOB.HHE. 2020-11-18T17:21:43.75 0.1 undecidable manual P 324 0.4119 133 -0.23 97
IV.PLMA.HHZ. 2020-11-18T17:21:43.65 1.0 undecidable manual P 173 0.3885 135 -0.1 25
GU.EQUI.HHE. 2020-11-18T17:21:43.57 0.3 undecidable manual P 136 0.3741 136 -0.04 75
GU.GRAM.HHZ. 2020-11-18T17:21:41.61 0.1 positive manual P 74 0.2041 154 -0.65 89
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GRAM.HHN. ML:2 0.000231 1.62 AML other m 2020-11-18T17:21:48.84
GU.GRAM.HHE. ML:1.8 0.000135 0.44 AML other m 2020-11-18T17:21:49.07
GU.GORR.HHE. ML:1.6 6.825E-5 0.66 AML other m 2020-11-18T17:21:53.05
GU.GORR.HHN. ML:1.8 0.0001151 1.32 AML other m 2020-11-18T17:21:53.28
GU.POPM.HHN. ML:1.7 4.61E-5 0.18 AML other m 2020-11-18T17:22:01.43
GU.POPM.HHE. ML:1.7 4.69E-5 0.2 AML other m 2020-11-18T17:22:03.35
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