Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 17-03-2020 and time 09:47:28 (Italy) in region 3 km SW Bolognola (MC)

A magnitude ML 0.8 earthquake occured in region: 3 km SW Bolognola (MC), on

  • 17-03-2020 08:47:28 (UTC)
  • 17-03-2020 09:47:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9780, 13.2000 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.

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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
Acquacanina MC 6 121 263
Ussita MC 6 444 707
Fiastra MC 7 559 1266
Castelsantangelo sul Nera MC 10 281 1547
Visso MC 10 1107 2654
Sarnano MC 11 3264 5918
Fiordimonte MC 11 202 6120
Montefortino FM 12 1178 7298
Amandola FM 13 3629 10927
Pievebovigliana MC 13 866 11793
Montemonaco AP 14 604 12397
Pieve Torina MC 14 1458 13855
Gualdo MC 15 815 14670
Cessapalombo MC 15 512 15182
Monte Cavallo MC 16 145 15327
Preci PG 17 724 16051
Muccia MC 17 915 16966
San Ginesio MC 17 3498 20464
Comunanza AP 18 3166 23630
Camporotondo di Fiastrone MC 18 563 24193
Caldarola MC 18 1823 26016
Montegallo AP 19 523 26539

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
65 Km NE of Terni (111501 inhabitants)
67 Km E of Perugia (166134 inhabitants)
72 Km N of L'Aquila (69753 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
93 Km NW of Montesilvano (53738 inhabitants)
97 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 0.8 2020-03-17
08:47:28		 42.9785 13.1995 6 2020-03-17
09:06:00		 Sala Sismica INGV-Roma 77320711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-17 08:47:28 ± 0.21
Latitude 42.9785 ± 0.0045
Longitude 13.1995 ± 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 77320711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 660
Semi-minor axis of confidence ellipse (meter) 127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 246
Circular confidence region, given by single value of horizontal uncertainty (meter) 660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.06745
Epicentral distance of station farthest from the epicenter (degree) 0.21674
Number of stations at which the event was observed 8
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 4
Type of magnitude ML
Reference to an origin 77320711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-17 09:06:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.HNZ. 2020-03-17T08:47:36.60 0.3 undecidable manual S 309 23.754 104 0.02 73
IV.NRCA.HHZ. 2020-03-17T08:47:34.44 0.3 undecidable manual S 203 17.4714 109 -0.05 74
IV.CESI.HNZ. 2020-03-17T08:47:33.59 0.3 undecidable manual P 277 24.0537 104 0.54 65
IV.CSP1.EHZ. 2020-03-17T08:47:33.04 0.3 undecidable manual S 2 12.5763 115 0.14 73
IV.MMO1.EHZ. 2020-03-17T08:47:33.38 0.3 undecidable manual S 130 13.5753 114 0.17 72
IV.MML1.HNZ. 2020-03-17T08:47:32.67 0.1 undecidable manual P 309 23.754 104 -0.31 92
IV.FDMO.HHZ. 2020-03-17T08:47:32.32 0.3 undecidable manual S 305 11.1777 118 -0.14 73
IV.MC2.EHZ. 2020-03-17T08:47:31.36 0.3 undecidable manual S 187 7.4814 128 -0.03 75
IV.NRCA.HHZ. 2020-03-17T08:47:31.56 0.1 undecidable manual P 203 17.4714 109 -0.22 95
IV.FEMA.HNZ. 2020-03-17T08:47:31.44 0.3 undecidable manual P 262 12.2766 116 0.63 64
IV.CSP1.EHZ. 2020-03-17T08:47:30.87 0.1 undecidable manual P 2 12.5763 115 0.01 100
IV.MMO1.EHZ. 2020-03-17T08:47:30.97 0.1 undecidable manual P 130 13.5753 114 -0.07 99
IV.FDMO.HHZ. 2020-03-17T08:47:30.36 0.1 undecidable manual P 305 11.1777 118 -0.25 95
IV.MC2.EHZ. 2020-03-17T08:47:29.94 0.1 undecidable manual P 187 7.4814 128 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.5 0.000046874765 0.1984 AML other m 2020-03-17T08:47:32.81
IV.FDMO.HHN. ML:0.6 0.000053664415 0.1408 AML other m 2020-03-17T08:47:32.33
IV.NRCA.HHE. ML:1.3 0.00017475715 0.1024 AML other m 2020-03-17T08:47:35.03
IV.NRCA.HHN. ML:1.0 0.00008738207 0.0768 AML other m 2020-03-17T08:47:35.07
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