Earthquake with magnitude of ML 0.8 on date 18-08-2019 and time 10:45:59 (Italy) in region 3 km W Preci (PG)

A magnitude ML 0.8 earthquake occured in region: 3 km W Preci (PG), on

  • 18-08-2019 08:45:59 (UTC)
  • 18-08-2019 10:45:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.87, 13 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 3 724 724
Sellano PG 7 1079 1803
Cerreto di Spoleto PG 9 1075 2878
Visso MC 10 1107 3985
Norcia PG 11 4957 8942
Castelsantangelo sul Nera MC 13 281 9223
Ussita MC 14 444 9667
Monte Cavallo MC 14 145 9812
Vallo di Nera PG 16 364 10176
Cascia PG 17 3217 13393
Poggiodomo PG 19 117 13510
Campello sul Clitunno PG 19 2442 15952
Pieve Torina MC 20 1458 17410
Fiordimonte MC 20 202 17612

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
57 Km E of Perugia (166134 inhabitants)
62 Km W of Teramo (54892 inhabitants)
66 Km NW of L'Aquila (69753 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
93 Km SW of Ancona (100861 inhabitants)
99 Km N of Guidonia Montecelio (88673 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 0.8 2019-08-18
08:45:59
42.87 13 10 2019-08-18
09:14:15
Sala Sismica INGV-Roma 71598941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-18 08:45:59 ± 0.09
Latitude 42.87 ± 0.00
Longitude 13.00 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71598941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 555
Semi-minor axis of confidence ellipse (meter) 142
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 64
Circular confidence region, given by single value of horizontal uncertainty (meter) 550
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.2698
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 71598941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-18 09:14:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LNSS.HHE. 2019-08-18T08:46:10.33 1.0 undecidable manual S 174 0.2698 50 -0.1 24
IV.CSP1.EHZ. 2019-08-18T08:46:10.18 0.3 undecidable manual S 34 0.2644 50 -0.1 72
IV.FDMO.HHZ. 2019-08-18T08:46:07.32 0.3 undecidable manual S 20 0.1754 118 -0.19 72
IV.CESI.HHE. 2019-08-18T08:46:06.48 0.6 undecidable manual S 331 0.152 122 -0.25 47
IV.CSP1.EHZ. 2019-08-18T08:46:06.17 1.0 negative manual P 34 0.2644 50 0.3 23
IV.MC2.EHZ. 2019-08-18T08:46:06.48 0.3 undecidable manual S 73 0.1403 124 0.12 73
IV.FEMA.HNE. 2019-08-18T08:46:05.16 0.6 undecidable manual S 20 0.0962 134 0.13 49
IT.MTCL.HGE. 2019-08-18T08:46:05.58 0.3 undecidable manual S 358 0.1223 128 -0.21 72
IV.LNSS.HHE. 2019-08-18T08:46:05.64 1.0 undecidable manual P 174 0.2698 50 -0.32 23
IV.NRCA.HHZ. 2019-08-18T08:46:04.59 0.3 undecidable manual S 115 0.089 137 -0.23 72
IV.CESI.HHE. 2019-08-18T08:46:04.05 0.3 undecidable manual P 331 0.152 122 0.23 71
IV.FDMO.HHZ. 2019-08-18T08:46:04.30 0.3 negative manual P 20 0.1754 118 0.03 74
IT.MTCL.HGE. 2019-08-18T08:46:03.37 0.3 undecidable manual P 358 0.1223 128 0.1 74
IV.MC2.EHZ. 2019-08-18T08:46:03.76 1.0 positive manual P 73 0.1403 124 0.16 24
IV.FEMA.HNE. 2019-08-18T08:46:03.06 0.3 undecidable manual P 20 0.0962 134 0.22 72
IV.NRCA.HHZ. 2019-08-18T08:46:02.77 0.1 undecidable manual P 115 0.089 137 0.05 100
IV.CESX.HHZ. 2019-08-18T08:46:01.55 3.0 positive manual P 0 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.1 0.0001577097 0.0832 AML other m 2019-08-18T08:46:05.53
IV.NRCA.HHN. ML:0.9 0.00010540215 0.1024 AML other m 2019-08-18T08:46:06.03
IV.NRCA.HNE. ML:1 0.00013222285 0.0832 AML other m 2019-08-18T08:46:05.48
IV.FDMO.HHE. ML:1 6.8748755E-5 0.1792 AML other m 2019-08-18T08:46:07.64
IV.FDMO.HHN. ML:0.7 3.6633725E-5 0.2048 AML other m 2019-08-18T08:46:07.59
IV.CSP1.EHE. ML:0.3 1.115102E-5 0.7808 AML other m 2019-08-18T08:46:13.94
IV.CSP1.EHN. ML:0.3 9.882666E-6 0.2624 AML other m 2019-08-18T08:46:13.84
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