Earthquake with magnitude of ML 0.5 on date 20-05-2019 and time 20:50:51 (Italy) in region 3 km S Bolognola (MC)

A magnitude ML 0.5 earthquake occured in region: 3 km S Bolognola (MC), on

  • 20-05-2019 18:50:51 (UTC)
  • 20-05-2019 20:50:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9660, 13.2200 at 6 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
Bolognola MC 3 142 142
Ussita MC 7 444 586
Acquacanina MC 8 121 707
Fiastra MC 9 559 1266
Castelsantangelo sul Nera MC 10 281 1547
Sarnano MC 10 3264 4811
Montefortino FM 10 1178 5989
Amandola FM 11 3629 9618
Visso MC 11 1107 10725
Montemonaco AP 11 604 11329
Fiordimonte MC 13 202 11531
Gualdo MC 15 815 12346
Pievebovigliana MC 15 866 13212
Comunanza AP 16 3166 16378
Cessapalombo MC 16 512 16890
Pieve Torina MC 16 1458 18348
Montegallo AP 17 523 18871
Preci PG 18 724 19595
San Ginesio MC 18 3498 23093
Monte Cavallo MC 18 145 23238
Smerillo FM 19 365 23603
Camporotondo di Fiastrone MC 19 563 24166
Monte San Martino MC 19 765 24931
Caldarola MC 19 1823 26754
Muccia MC 19 915 27669
Penna San Giovanni MC 20 1108 28777
Montefalcone Appennino FM 20 424 29201

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
52 Km NW of Teramo (54892 inhabitants)
65 Km NE of Terni (111501 inhabitants)
69 Km E of Perugia (166134 inhabitants)
70 Km N of L'Aquila (69753 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
91 Km NW of Montesilvano (53738 inhabitants)
99 Km NW of Pescara (121014 inhabitants)
99 Km S of Fano (60888 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.5 2019-05-20
18:50:51
42.9663 13.2202 6 2019-05-20
18:58:26
Sala Sismica INGV-Roma 68734321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-05-20 18:50:51 ± 0.28
Latitude 42.9663 ± 0.0054
Longitude 13.2202 ± 0.0074
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 68734321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 627
Semi-minor axis of confidence ellipse (meter) 285
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.05936
Epicentral distance of station farthest from the epicenter (degree) 0.17627
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 68734321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-05-20 18:58:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2019-05-20T18:50:59.60 0.3 undecidable manual S 83 19.5693 106 0.9 56
IV.NRCA.HHZ. 2019-05-20T18:50:58.20 0.3 undecidable manual S 210 17.0718 109 0.33 69
IV.CSP1.EHZ. 2019-05-20T18:50:56.97 0.3 undecidable manual S 355 13.9749 112 0.1 73
IV.FDMO.HHZ. 2019-05-20T18:50:56.60 0.3 undecidable manual S 306 13.2756 113 -0.05 74
IV.MMO1.EHZ. 2019-05-20T18:50:55.73 0.1 undecidable manual S 131 11.3775 117 -0.33 93
IV.NRCA.HHZ. 2019-05-20T18:50:55.31 0.3 undecidable manual P 210 17.0718 109 0.08 73
IV.MF5.EHZ. 2019-05-20T18:50:55.57 0.3 undecidable manual P 83 19.5693 106 -0.14 72
IV.FDMO.HHZ. 2019-05-20T18:50:54.54 0.3 undecidable manual P 306 13.2756 113 0.01 74
IV.CSP1.EHZ. 2019-05-20T18:50:54.40 0.1 undecidable manual P 355 13.9749 112 -0.25 94
IV.MC2.EHZ. 2019-05-20T18:50:54.68 0.1 undecidable manual S 203 6.5934 131 0.02 100
IV.MC2.EHZ. 2019-05-20T18:50:53.42 0.1 undecidable manual P 203 6.5934 131 0.05 100
IV.MMO1.EHZ. 2019-05-20T18:50:53.90 0.1 undecidable manual P 131 11.3775 117 -0.28 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.6 0.000038350000000000004 0.62 AML other m 2019-05-20T18:50:58.61
IV.NRCA.HHE. ML:0.9 0.00007000000000000001 1.88 AML other m 2019-05-20T18:50:58.97
IV.FDMO.HHE. ML:0.3 0.000025837275 0.1792 AML other m 2019-05-20T18:50:57.13
IV.FDMO.HHN. ML:0.1 0.000015283807499999998 0.1664 AML other m 2019-05-20T18:50:57.59
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download