Earthquake with magnitude of ML 0.4 on date 16-10-2019 and time 19:51:27 (UTC) in region 5 km SE Bolognola (MC)

A magnitude ML 0.4 earthquake occured in region: 5 km SE Bolognola (MC), on

  • 16-10-2019 19:51:27 (UTC)
  • 16-10-2019 21:51:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.95, 13.24 at 25 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 5 142 142
Montefortino FM 8 1178 1320
Ussita MC 9 444 1764
Montemonaco AP 9 604 2368
Amandola FM 10 3629 5997
Castelsantangelo sul Nera MC 10 281 6278
Sarnano MC 10 3264 9542
Acquacanina MC 10 121 9663
Fiastra MC 12 559 10222
Visso MC 13 1107 11329
Comunanza AP 14 3166 14495
Montegallo AP 14 523 15018
Gualdo MC 15 815 15833
Fiordimonte MC 16 202 16035
Smerillo FM 17 365 16400
Cessapalombo MC 18 512 16912
Pievebovigliana MC 18 866 17778
Montefalcone Appennino FM 18 424 18202
Monte San Martino MC 18 765 18967
San Ginesio MC 18 3498 22465
Palmiano AP 18 196 22661
Preci PG 19 724 23385
Penna San Giovanni MC 19 1108 24493
Pieve Torina MC 19 1458 25951
Camporotondo di Fiastrone MC 20 563 26514

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
50 Km NW of Teramo (54892 inhabitants)
65 Km NE of Terni (111501 inhabitants)
68 Km N of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
77 Km S of Ancona (100861 inhabitants)
89 Km NW of Montesilvano (53738 inhabitants)
96 Km NW of Pescara (121014 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 0.4 2019-10-16
19:51:27
42.95 13.25 25 2019-10-16
20:01:46
Sala Sismica INGV-Roma 73291931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-16 19:51:27 ± 0.16
Latitude 42.95 ± 0.01
Longitude 13.25 ± 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 73291931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 691
Semi-minor axis of confidence ellipse (meter) 284
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 282
Circular confidence region, given by single value of horizontal uncertainty (meter) 690
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
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) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.25451
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:0.4

Field Value
Value 0.4
Uncertainty 0.5
Num. used stations 4
Type of magnitude ML
Reference to an origin 73291931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-16 20:01:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GIUL.HHZ. 2019-10-16T19:51:48.97 3.0 negative manual Pg 0 0
IV.MF5.EHZ. 2019-10-16T19:51:37.46 0.6 undecidable manual S 77 0.161 140 0.36 48
IV.CSP1.EHZ. 2019-10-16T19:51:36.78 0.3 undecidable manual S 348 0.1421 144 0.03 77
IV.FDMO.HHZ. 2019-10-16T19:51:36.69 0.6 undecidable manual S 306 0.1421 144 -0.08 51
IV.NRCA.HNZ. 2019-10-16T19:51:36.88 0.3 undecidable manual S 219 0.1529 142 -0.08 75
IV.MMO1.EHZ. 2019-10-16T19:51:35.52 0.6 undecidable manual S 132 0.08 158 -0.34 48
IV.MC2.EHZ. 2019-10-16T19:51:35.89 0.3 undecidable manual S 225 0.0585 164 0.23 76
IV.CESI.HNZ. 2019-10-16T19:51:34.52 0.1 undecidable manual P 282 0.2545 126 0.14 98
IV.NRCA.HNZ. 2019-10-16T19:51:33.22 0.6 undecidable manual P 219 0.1529 142 0.1 51
IV.PF6.EHZ. 2019-10-16T19:51:33.34 0.1 undecidable manual P 349 0.188 135 -0.17 100
IV.MF5.EHZ. 2019-10-16T19:51:33.25 0.3 undecidable manual P 77 0.161 140 0.05 76
IV.FDMO.HHZ. 2019-10-16T19:51:32.86 0.6 positive manual P 306 0.1421 144 -0.14 50
IV.CSP1.EHZ. 2019-10-16T19:51:32.91 0.6 positive manual P 348 0.1421 144 -0.09 51
IV.MMO1.EHZ. 2019-10-16T19:51:32.28 0.6 undecidable manual P 132 0.08 158 -0.2 50
IV.MC2.EHZ. 2019-10-16T19:51:32.45 1.0 negative manual P 225 0.0585 164 0.09 26
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.3 9.275861E-6 0.1792 AML other m 2019-10-16T19:51:37.48
IV.FDMO.HHN. ML:0.3 7.6241175E-6 1.3312 AML other m 2019-10-16T19:51:36.31
IV.CSP1.EHN. ML:0.3 1.2137535E-5 44.864 AML other m 2019-10-16T19:51:10.27
IV.GIUL.HHE. ML:1.9 3.3529145E-5 2.1376 AML other m 2019-10-16T19:52:00.88
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