Earthquake with magnitude of ML 1.0 on date 23-08-2019 and time 12:52:27 (Italy) in region 7 km NE Nocera Umbra (PG)

A magnitude ML 1.0 earthquake occured in region: 7 km NE Nocera Umbra (PG), on

  • 23-08-2019 10:52:27 (UTC)
  • 23-08-2019 12:52:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.16, 12.85 at 16 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
Nocera Umbra PG 7 5839 5839
Fiuminata MC 8 1402 7241
Sefro MC 8 422 7663
Gualdo Tadino PG 9 15208 22871
Pioraco MC 11 1134 24005
Esanatoglia MC 13 2034 26039
Serravalle di Chienti MC 13 1070 27109
Valtopina PG 14 1398 28507
Fossato di Vico PG 17 2840 31347
Matelica MC 17 9981 41328
Castelraimondo MC 18 4587 45915
Camerino MC 18 6974 52889
Muccia MC 18 915 53804

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NE of Foligno (57155 inhabitants)
38 Km E of Perugia (166134 inhabitants)
69 Km N of Terni (111501 inhabitants)
74 Km SW of Ancona (100861 inhabitants)
77 Km S of Fano (60888 inhabitants)
84 Km S of Pesaro (94582 inhabitants)
85 Km E of Arezzo (99543 inhabitants)
89 Km NW of Teramo (54892 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 1.0 2019-08-23
10:52:27
43.16 12.85 16 2019-08-23
10:58:03
Sala Sismica INGV-Roma 71737181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-23 10:52:27 ± 0.07
Latitude 43.16 ± 0.00
Longitude 12.85 ± 0.00
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71737181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 259
Semi-minor axis of confidence ellipse (meter) 56
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 207
Circular confidence region, given by single value of horizontal uncertainty (meter) 260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.10162
Epicentral distance of station farthest from the epicenter (degree) 0.38041
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

Field Value
Value 1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 71737181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-23 10:58:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2019-08-23T10:52:41.22 0.6 undecidable manual S 149 0.3804 99 0.14 46
IV.CSP1.EHZ. 2019-08-23T10:52:38.12 0.6 undecidable manual S 105 0.2689 105 0.27 46
IV.ATSC.EHE. 2019-08-23T10:52:38.57 0.6 undecidable manual S 336 0.2878 104 0.17 47
IV.EL6.EHZ. 2019-08-23T10:52:37.32 0.6 undecidable manual S 48 0.25 107 0.01 48
IV.FDMO.HHZ. 2019-08-23T10:52:36.20 0.6 undecidable manual S 125 0.214 111 -0.11 48
IT.MTCL.HGZ. 2019-08-23T10:52:36.02 0.6 undecidable manual S 146 0.1996 113 0.1 48
IV.ASSB.HHZ. 2019-08-23T10:52:35.50 0.6 undecidable manual S 230 0.1817 116 0.08 48
IV.NRCA.HHZ. 2019-08-23T10:52:35.04 0.3 negative manual P 149 0.3804 99 -0.19 68
IV.ATSC.EHE. 2019-08-23T10:52:34.01 0.6 undecidable manual P 336 0.2878 104 0.33 45
IV.CESI.HHZ. 2019-08-23T10:52:34.85 0.6 undecidable manual S 165 0.161 121 -0.03 49
IV.ATCC.EHZ. 2019-08-23T10:52:34.61 0.6 undecidable manual S 279 0.1538 122 -0.09 49
IV.CSP1.EHZ. 2019-08-23T10:52:33.35 1.0 positive manual P 105 0.2689 105 -0.02 24
IV.SNTG.HHZ. 2019-08-23T10:52:33.59 0.6 undecidable manual S 36 0.116 132 -0.22 47
IV.MML1.HNZ. 2019-08-23T10:52:33.71 0.6 undecidable manual S 118 0.1016 137 0.2 48
IV.EL6.EHZ. 2019-08-23T10:52:32.97 0.6 undecidable manual P 48 0.25 107 -0.09 47
IT.MTCL.HGZ. 2019-08-23T10:52:32.31 0.1 undecidable manual P 146 0.1996 113 0.06 97
IV.FDMO.HHZ. 2019-08-23T10:52:32.36 1.0 undecidable manual P 125 0.214 111 -0.12 24
IV.CESI.HHZ. 2019-08-23T10:52:31.57 0.3 negative manual P 165 0.161 121 -0.09 73
IV.ATCC.EHZ. 2019-08-23T10:52:31.57 1.0 negative manual P 279 0.1538 122 0.02 25
IV.ASSB.HHZ. 2019-08-23T10:52:31.80 0.6 positive manual P 230 0.1817 116 -0.17 48
IV.SNTG.HHZ. 2019-08-23T10:52:30.69 1.0 positive manual P 36 0.116 132 -0.34 23
IV.MML1.HNZ. 2019-08-23T10:52:30.87 0.1 undecidable manual P 118 0.1016 137 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SNTG.HHN. ML:0.9 5.96E-5 1.04 AML other m 2019-08-23T10:52:33.76
IV.SNTG.HHE. ML:0.8 5.215E-5 0.12 AML other m 2019-08-23T10:52:34.18
IV.CESI.HHE. ML:1.3 0.0001485 0.18 AML other m 2019-08-23T10:52:34.85
IV.ATCC.EHE. ML:1.1 8.54E-5 1.76 AML other m 2019-08-23T10:52:34.11
IV.CESI.HHN. ML:1 6.33E-5 0.08 AML other m 2019-08-23T10:52:35.08
IV.ATCC.EHN. ML:0.9 6.13E-5 0.94 AML other m 2019-08-23T10:52:35.70
IV.FDMO.HHN. ML:1.1 6.54E-5 0.16 AML other m 2019-08-23T10:52:36.75
IV.FDMO.HHE. ML:0.9 4.54E-5 1.46 AML other m 2019-08-23T10:52:37.09
IV.NRCA.HHE. ML:1.1 4.105E-5 0.72 AML other m 2019-08-23T10:52:41.22
IV.NRCA.HHN. ML:1.2 4.49E-5 0.08 AML other m 2019-08-23T10:52:42.39
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