Earthquake with magnitude of ML 0.5 on date 21-03-2019 and time 21:00:18 (Italy) in region 3 km NW Nocera Umbra (PG)

A magnitude ML 0.5 earthquake occured in region: 3 km NW Nocera Umbra (PG), on

  • 21-03-2019 20:00:18 (UTC)
  • 21-03-2019 21:00:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.14, 12.78 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
Nocera Umbra PG 3 5839 5839
Valtopina PG 9 1398 7237
Gualdo Tadino PG 11 15208 22445
Fiuminata MC 14 1402 23847
Sefro MC 14 422 24269
Valfabbrica PG 14 3389 27658
Assisi PG 15 28299 55957
Serravalle di Chienti MC 16 1070 57027
Fossato di Vico PG 18 2840 59867
Pioraco MC 18 1134 61001
Spello PG 18 8645 69646
Esanatoglia MC 19 2034 71680
Bastia Umbra PG 20 21874 93554

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km N of Foligno (57155 inhabitants)
31 Km E of Perugia (166134 inhabitants)
65 Km N of Terni (111501 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
81 Km E of Arezzo (99543 inhabitants)
81 Km S of Fano (60888 inhabitants)
87 Km S of Pesaro (94582 inhabitants)
92 Km NW of Teramo (54892 inhabitants)
97 Km NE of Viterbo (67173 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 0.5 2019-03-21
20:00:18
43.14 12.77 10 2019-03-21
20:08:19
Sala Sismica INGV-Roma 66772991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-21 20:00:18 ± 0.04
Latitude 43.14 ± 0.00
Longitude 12.77 ± 0.00
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 66772991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 219
Semi-minor axis of confidence ellipse (meter) 184
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 13
Circular confidence region, given by single value of horizontal uncertainty (meter) 220
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30667
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 66772991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-21 20:08:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APEC.HHZ. 2019-03-21T20:00:34.59 3.0 undecidable manual S 0.04 0
IV.NARO.HHZ. 2019-03-21T20:00:34.54 3.0 undecidable manual S -0.1 0
IV.GAVE.EHZ. 2019-03-21T20:00:29.78 3.0 undecidable manual P 0.48 0
IV.FDMO.HHZ. 2019-03-21T20:00:28.58 0.3 undecidable manual S 113 0.2491 50 -0.01 74
IV.SNTG.HHZ. 2019-03-21T20:00:26.00 0.6 undecidable manual S 45 0.17 119 -0.08 49
IV.CESI.HHZ. 2019-03-21T20:00:25.85 0.6 undecidable manual S 144 0.1619 120 0.05 50
IV.EL6.EHZ. 2019-03-21T20:00:25.45 0.3 undecidable manual P 51 0.3067 50 0.09 72
IV.FOSV.EHE. 2019-03-21T20:00:25.54 0.6 undecidable manual S 356 0.1592 120 -0.19 48
IV.MML1.EHE. 2019-03-21T20:00:25.26 0.6 undecidable manual S 99 0.1457 123 -0.01 50
IV.FDMO.HHZ. 2019-03-21T20:00:24.26 0.3 undecidable manual P 113 0.2491 50 -0.12 72
IV.ATCC.EHZ. 2019-03-21T20:00:24.27 0.3 undecidable manual S 297 0.1097 130 0.1 75
IV.ASSB.HHZ. 2019-03-21T20:00:24.46 0.3 undecidable manual S 222 0.1259 127 -0.19 73
IV.MML1.EHE. 2019-03-21T20:00:22.61 0.3 undecidable manual P 99 0.1457 123 0.15 73
IV.ASSB.HHZ. 2019-03-21T20:00:22.12 0.3 undecidable manual P 222 0.1259 127 0.02 76
IV.CESI.HHZ. 2019-03-21T20:00:22.77 0.3 undecidable manual P 144 0.1619 120 0.01 75
IV.SNTG.HHZ. 2019-03-21T20:00:22.94 0.1 undecidable manual P 45 0.17 119 0.02 100
IV.FOSV.EHE. 2019-03-21T20:00:22.61 0.3 undecidable manual P 356 0.1592 120 -0.11 74
IV.ATCC.EHZ. 2019-03-21T20:00:21.99 0.3 negative manual P 297 0.1097 130 0.17 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHE. ML:1.2 0.0001778987 0.1152 AML other m 2019-03-21T20:00:24.52
IV.ATCC.EHN. ML:1 0.000115321295 0.2304 AML other m 2019-03-21T20:00:24.47
IV.ASSB.HHE. ML:0.4 2.669586E-5 0.064 AML other m 2019-03-21T20:00:24.64
IV.ASSB.HHN. ML:0.5 2.8285995E-5 0.0768 AML other m 2019-03-21T20:00:24.84
IV.SNTG.HHE. ML:0.3 1.5747518E-5 0.0896 AML other m 2019-03-21T20:00:26.44
IV.SNTG.HHN. ML:0.3 1.5587069E-5 0.128 AML other m 2019-03-21T20:00:26.20
IV.FDMO.HHE. ML:0.7 2.2816075E-5 2.2656 AML other m 2019-03-21T20:00:30.72
IV.FDMO.HHN. ML:0.5 1.6376034E-5 0.2048 AML other m 2019-03-21T20:00:28.73
IV.EL6.EHN. ML:1 4.095233E-5 1.8432 AML other m 2019-03-21T20:00:30.98
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