Earthquake with magnitude of ML 1.8 on date 08-08-2020 and time 10:41:36 (UTC) in region 4 km E Preci (PG)

A magnitude ML 1.8 earthquake occured in region: 4 km E Preci (PG), on

  • 08-08-2020 10:41:36 (UTC)
  • 08-08-2020 12:41:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.87, 13.08 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
Preci PG 4 724 724
Castelsantangelo sul Nera MC 6 281 1005
Visso MC 7 1107 2112
Norcia PG 9 4957 7069
Ussita MC 10 444 7513
Sellano PG 13 1079 8592
Cerreto di Spoleto PG 15 1075 9667
Monte Cavallo MC 16 145 9812
Cascia PG 18 3217 13029
Bolognola MC 18 142 13171
Fiordimonte MC 19 202 13373
Acquacanina MC 19 121 13494
Fiastra MC 20 559 14053
Pieve Torina MC 20 1458 15511

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
56 Km W of Teramo (54892 inhabitants)
63 Km E of Perugia (166134 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
96 Km W 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
Reviewed
Rev100
ML 1.8 2020-08-08
10:41:36
42.87 13.09 11 2020-08-08
10:57:37
Sala Sismica INGV-Roma 81769001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-08 10:41:36 ± 0.04
Latitude 42.87 ± 0.00
Longitude 13.09 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81769001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 288
Semi-minor axis of confidence ellipse (meter) 231
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.60165
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 22
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 81769001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-08 10:57:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2020-08-08T10:42:24.68 3.0 undecidable manual S 0.59 0
IV.MCIV.CHZ. 2020-08-08T10:42:12.97 3.0 undecidable manual S 0.1 0
IV.ARVD.HHZ. 2020-08-08T10:41:59.66 3.0 undecidable manual S -0.01 0
IV.FIAM.HHZ. 2020-08-08T10:41:57.57 0.3 undecidable manual S 178 0.6016 50 0.54 60
IV.EL6.EHZ. 2020-08-08T10:41:53.35 0.3 undecidable manual S 2 0.4596 50 0.52 62
IV.CESX.HHZ. 2020-08-08T10:41:52.99 0.3 undecidable manual S 235 0.4488 50 0.47 63
IV.TERO.HHZ. 2020-08-08T10:41:52.65 0.3 undecidable manual S 123 0.4533 50 0 70
IV.RM33.EHZ. 2020-08-08T10:41:50.24 0.3 undecidable manual S 165 0.3723 50 -0.01 71
IV.ARRO.EHZ. 2020-08-08T10:41:50.46 0.3 undecidable manual S 219 0.3732 50 0.2 68
IV.ASSB.HHZ. 2020-08-08T10:41:49.78 0.3 undecidable manual S 299 0.357 50 0 71
IV.MF5.EHZ. 2020-08-08T10:41:48.93 0.3 undecidable manual S 67 0.2986 50 0.87 56
IV.PF6.EHN. 2020-08-08T10:41:47.24 0.3 undecidable manual S 17 0.2797 50 -0.27 68
IV.SMA1.EHZ. 2020-08-08T10:41:47.86 0.3 undecidable manual S 142 0.3013 50 -0.28 68
IV.FIAM.HHZ. 2020-08-08T10:41:47.90 0.6 undecidable manual P 178 0.6016 50 -0.51 41
IV.CSP1.EHZ. 2020-08-08T10:41:46.10 0.3 undecidable manual S 21 0.2392 50 -0.19 70
IV.LNSS.HHZ. 2020-08-08T10:41:46.92 0.3 undecidable manual S 187 0.268 50 -0.24 69
IV.MML1.EHN. 2020-08-08T10:41:46.73 0.6 undecidable manual S 341 0.2572 50 -0.11 47
IV.MTRA.EHZ. 2020-08-08T10:41:46.48 0.6 undecidable manual S 116 0.2545 50 -0.27 46
IV.EL6.EHZ. 2020-08-08T10:41:45.95 0.1 undecidable manual P 2 0.4596 50 -0.03 92
IV.CESX.HHZ. 2020-08-08T10:41:45.70 0.1 undecidable manual P 235 0.4488 50 -0.1 91
IV.TERO.HHZ. 2020-08-08T10:41:45.78 0.1 undecidable manual P 123 0.4533 50 -0.09 91
IV.GAVE.EHZ. 2020-08-08T10:41:45.79 0.6 undecidable manual S 218 0.2257 50 -0.11 48
IV.ARRO.EHZ. 2020-08-08T10:41:44.56 0.3 undecidable manual P 219 0.3732 50 0.06 70
IV.MMO1.EHZ. 2020-08-08T10:41:44.10 0.1 undecidable manual S 80 0.1799 118 -0.33 92
IV.CESI.HHZ. 2020-08-08T10:41:44.30 0.3 undecidable manual S 316 0.1889 117 -0.46 67
IV.ASSB.HHZ. 2020-08-08T10:41:44.13 0.1 undecidable manual P 299 0.357 50 -0.09 93
IV.RM33.EHZ. 2020-08-08T10:41:44.30 0.1 undecidable manual P 165 0.3723 50 -0.19 91
IV.FDMO.HHZ. 2020-08-08T10:41:43.76 0.1 undecidable manual S 1 0.1673 119 -0.25 94
IV.MF5.EHZ. 2020-08-08T10:41:43.50 0.1 undecidable manual P 67 0.2986 50 0.28 91
IV.SMA1.EHZ. 2020-08-08T10:41:43.17 0.1 undecidable manual P 142 0.3013 50 -0.1 94
IV.CSP1.EHZ. 2020-08-08T10:41:42.06 0.1 undecidable manual P 21 0.2392 50 -0.14 94
IV.LNSS.HHZ. 2020-08-08T10:41:42.71 0.3 undecidable manual P 187 0.268 50 0 72
IV.MML1.EHN. 2020-08-08T10:41:42.49 0.1 undecidable manual P 341 0.2572 50 -0.04 96
IV.MTRA.EHZ. 2020-08-08T10:41:42.33 0.3 undecidable manual P 116 0.2545 50 -0.14 71
IV.PF6.EHN. 2020-08-08T10:41:42.85 0.1 undecidable manual P 17 0.2797 50 -0.05 95
IT.MTCL.HGE. 2020-08-08T10:41:42.97 0.3 undecidable manual S 333 0.1394 124 -0.14 72
IV.GAVE.EHZ. 2020-08-08T10:41:41.98 0.1 undecidable manual P 218 0.2257 50 0 97
IV.MC2.EHZ. 2020-08-08T10:41:41.84 0.1 undecidable manual S 61 0.0872 137 0.28 95
IV.MMO1.EHZ. 2020-08-08T10:41:41.06 0.1 undecidable manual P 80 0.1799 118 -0.07 97
IV.FEMA.HNZ. 2020-08-08T10:41:41.96 0.1 undecidable manual S 344 0.0962 134 0.15 97
IV.CESI.HHZ. 2020-08-08T10:41:41.40 0.1 undecidable manual P 316 0.1889 117 0.08 97
IV.NRCA.HNZ. 2020-08-08T10:41:40.55 0.1 undecidable manual S 149 0.0414 156 -0.05 100
IT.MTCL.HGE. 2020-08-08T10:41:40.47 0.1 undecidable manual P 333 0.1394 124 0.1 97
IV.FDMO.HHZ. 2020-08-08T10:41:40.86 0.1 undecidable manual P 1 0.1673 119 -0.03 98
IV.FEMA.HNZ. 2020-08-08T10:41:39.86 0.1 undecidable manual P 344 0.0962 134 0.24 95
IV.NRCA.HNZ. 2020-08-08T10:41:39.14 0.3 negative manual P 149 0.0414 156 0.22 72
IV.MC2.EHZ. 2020-08-08T10:41:39.77 0.1 negative manual P 61 0.0872 137 0.29 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:2.6 0.006715 0.16 AML other m 2020-08-08T10:41:40.69
IV.NRCA.HNN. ML:2.6 0.006495 0.16 AML other m 2020-08-08T10:41:40.70
IV.CESI.HHN. ML:2.2 0.0011535 0.2 AML other m 2020-08-08T10:41:45.13
IV.CESI.HHE. ML:2 0.000687 0.52 AML other m 2020-08-08T10:41:45.38
IV.GAVE.HNE. ML:2.2 0.0010155 0.3 AML other m 2020-08-08T10:41:46.48
IV.GAVE.EHE. ML:2.3 0.0010665 0.32 AML other m 2020-08-08T10:41:46.49
IV.MF5.EHE. ML:2 0.0003985 0.2 AML other m 2020-08-08T10:41:49.44
IV.MF5.EHN. ML:1.8 0.0003065 0.2 AML other m 2020-08-08T10:41:49.36
IV.ARRO.EHE. ML:1.6 0.000135 0.2 AML other m 2020-08-08T10:41:50.79
IV.NRCA.HHE. ML:2.4 0.0037632745 0.0768 AML other m 2020-08-08T10:41:40.70
IV.NRCA.HNE. ML:2.2 0.002863108 0.0768 AML other m 2020-08-08T10:41:40.70
IV.FEMA.HNE. ML:2 0.0011687225 0.16 AML other m 2020-08-08T10:41:42.78
IV.FEMA.HNN. ML:1.8 0.00084435815 0.1792 AML other m 2020-08-08T10:41:42.88
IV.FDMO.HHE. ML:1.6 0.0002783859 0.16 AML other m 2020-08-08T10:41:44.01
IV.FDMO.HHN. ML:1.5 0.0002636941 0.1216 AML other m 2020-08-08T10:41:44.27
IV.CESI.HNE. ML:1.8 0.00047127105 0.192 AML other m 2020-08-08T10:41:45.03
IV.CESI.HNN. ML:2.2 0.00109585515 0.2112 AML other m 2020-08-08T10:41:45.13
IV.GAVE.EHN. ML:2.2 0.00091733075 0.1408 AML other m 2020-08-08T10:41:46.98
IV.GAVE.HNN. ML:1.7 0.00026622535 0.1536 AML other m 2020-08-08T10:41:46.97
IV.CSP1.EHE. ML:1.8 0.0003380792 0.3008 AML other m 2020-08-08T10:41:46.76
IV.CSP1.EHN. ML:1.7 0.00024979015 0.384 AML other m 2020-08-08T10:41:47.27
IV.MTRA.EHE. ML:2 0.00047716555 0.1792 AML other m 2020-08-08T10:41:46.74
IV.MTRA.EHN. ML:2 0.00047998745 0.2368 AML other m 2020-08-08T10:41:47.34
IV.MTRA.HNE. ML:2 0.00046868155 0.1792 AML other m 2020-08-08T10:41:46.74
IV.MTRA.HNN. ML:2 0.00049413605 0.2432 AML other m 2020-08-08T10:41:47.33
IV.LNSS.HHE. ML:2.1 0.00056344875 0.096 AML other m 2020-08-08T10:41:47.74
IV.LNSS.HHN. ML:1.9 0.0003783077 0.2752 AML other m 2020-08-08T10:41:47.91
IV.LNSS.HNE. ML:2 0.00049468605 0.1024 AML other m 2020-08-08T10:41:47.75
IV.LNSS.HNN. ML:1.9 0.00037011875 0.2624 AML other m 2020-08-08T10:41:47.79
IV.SMA1.EHE. ML:1.6 0.00016436905 0.1856 AML other m 2020-08-08T10:41:49.09
IV.SMA1.EHN. ML:1.4 0.000121740725 0.1408 AML other m 2020-08-08T10:41:49.84
IV.ASSB.HHE. ML:1.6 0.00013033335 0.16 AML other m 2020-08-08T10:41:50.56
IV.ASSB.HHN. ML:1.3 7.6233475E-5 0.1408 AML other m 2020-08-08T10:41:51.16
IV.RM33.EHE. ML:1.3 6.2841365E-5 0.1984 AML other m 2020-08-08T10:41:51.91
IV.RM33.EHN. ML:1.3 6.975374E-5 0.2368 AML other m 2020-08-08T10:41:53.48
IV.ARRO.EHN. ML:1.5 9.385376E-5 0.2176 AML other m 2020-08-08T10:41:53.31
IV.CESX.HHE. ML:1.4 7.2375225E-5 0.1792 AML other m 2020-08-08T10:41:55.36
IV.CESX.HHN. ML:1.5 7.408979E-5 0.384 AML other m 2020-08-08T10:41:55.38
IV.TERO.HHE. ML:1.6 9.316241E-5 0.1408 AML other m 2020-08-08T10:41:53.96
IV.TERO.HHN. ML:1.6 0.00010520836 0.1408 AML other m 2020-08-08T10:41:52.99
IV.FIAM.HHE. ML:0.9 1.307261E-5 0.2624 AML other m 2020-08-08T10:41:59.60
IV.FIAM.HHN. ML:0.9 1.646128E-5 0.1792 AML other m 2020-08-08T10:41:58.72
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