ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.2 on date 15-03-2019 and time 04:05:58 (UTC) in region 3 km SW Bolognola (MC)

A magnitude ML 1.2 earthquake occured in region: 3 km SW Bolognola (MC), on

  • 15-03-2019 04:05:58 (UTC)
  • 15-03-2019 05:05:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.97, 13.2 at 24 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 6 444 586
Acquacanina MC 7 121 707
Fiastra MC 8 559 1266
Castelsantangelo sul Nera MC 9 281 1547
Visso MC 10 1107 2654
Sarnano MC 11 3264 5918
Fiordimonte MC 12 202 6120
Montefortino FM 12 1178 7298
Amandola FM 13 3629 10927
Montemonaco AP 13 604 11531
Pievebovigliana MC 14 866 12397
Pieve Torina MC 15 1458 13855
Gualdo MC 16 815 14670
Cessapalombo MC 16 512 15182
Monte Cavallo MC 16 145 15327
Preci PG 17 724 16051
Muccia MC 18 915 16966
Comunanza AP 18 3166 20132
San Ginesio MC 18 3498 23630
Montegallo AP 18 523 24153
Camporotondo di Fiastrone MC 19 563 24716
Caldarola MC 19 1823 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)
64 Km NE of Terni (111501 inhabitants)
68 Km E of Perugia (166134 inhabitants)
71 Km N of L'Aquila (69753 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
93 Km NW of Montesilvano (53738 inhabitants)
98 Km S of Fano (60888 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 1.2 2019-03-15
04:05:58
42.97 13.2 25 2019-03-15
04:33:35
Sala Sismica INGV-Roma 66547121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-15 04:05:58 ± 0.18
Latitude 42.97 ± 0.01
Longitude 13.20 ± 0.01
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66547121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 787
Semi-minor axis of confidence ellipse (meter) 640
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 226
Circular confidence region, given by single value of horizontal uncertainty (meter) 790
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.35613
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:1.2

Field Value
Value 1.2
Uncertainty 0
Num. used stations 2
Type of magnitude ML
Reference to an origin 66547121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-15 04:33:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SMA1.EHZ. 2019-03-15T04:06:12.36 0.6 undecidable manual S 164 0.3561 115 -0.02 49
IV.MOMA.HHZ. 2019-03-15T04:06:10.26 3.0 undecidable manual P 0.07 0
IV.MF5.EHZ. 2019-03-15T04:06:08.08 0.3 undecidable manual S 85 0.1907 134 -0.23 72
IV.GUMA.HHE. 2019-03-15T04:06:07.34 0.3 undecidable manual S 48 0.134 145 0.13 75
IV.FDMO.HHZ. 2019-03-15T04:06:06.97 0.6 undecidable manual S 308 0.1043 152 0.23 49
IV.MC2.EHZ. 2019-03-15T04:06:06.52 0.6 undecidable manual S 187 0.0612 163 0.27 49
IV.SMA1.EHZ. 2019-03-15T04:06:06.82 0.1 undecidable manual P 164 0.3561 115 0.28 92
IV.MMO1.EHZ. 2019-03-15T04:06:06.98 0.6 undecidable manual S 128 0.1187 148 0.03 51
IV.MF5.EHZ. 2019-03-15T04:06:04.12 0.3 undecidable manual P 85 0.1907 134 -0.07 74
IV.CESI.HHZ. 2019-03-15T04:06:04.67 0.1 undecidable manual P 279 0.2176 130 0.13 97
IV.NRCA.HHZ. 2019-03-15T04:06:03.46 0.1 undecidable manual P 204 0.152 141 -0.28 96
IV.MMO1.EHZ. 2019-03-15T04:06:03.54 0.1 undecidable manual P 128 0.1187 148 0.13 100
IV.GUMA.HHE. 2019-03-15T04:06:03.67 0.1 undecidable manual P 48 0.134 145 0.11 100
IV.FDMO.HHZ. 2019-03-15T04:06:03.00 0.1 undecidable manual P 308 0.1043 152 -0.29 97
IV.MC2.EHZ. 2019-03-15T04:06:02.75 0.3 undecidable manual P 187 0.0612 163 -0.25 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.2 8.375E-5 1.48 AML other m 2019-03-15T04:06:09.20
IV.NRCA.HHN. ML:1.2 7.705E-5 0.72 AML other m 2019-03-15T04:06:09.59
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