Earthquake with magnitude of ML 1.4 on date 21-09-2019 and time 04:20:12 (Italy) in region 5 km S Bolognola (MC)

A magnitude ML 1.4 earthquake occured in region: 5 km S Bolognola (MC), on

  • 21-09-2019 02:20:12 (UTC)
  • 21-09-2019 04:20:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.95, 13.23 at 9 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
Ussita MC 7 444 586
Castelsantangelo sul Nera MC 9 281 867
Montefortino FM 9 1178 2045
Acquacanina MC 10 121 2166
Montemonaco AP 10 604 2770
Amandola FM 11 3629 6399
Fiastra MC 11 559 6958
Sarnano MC 11 3264 10222
Visso MC 12 1107 11329
Montegallo AP 15 523 11852
Fiordimonte MC 15 202 12054
Comunanza AP 15 3166 15220
Gualdo MC 16 815 16035
Pievebovigliana MC 17 866 16901
Preci PG 17 724 17625
Pieve Torina MC 18 1458 19083
Cessapalombo MC 18 512 19595
Smerillo FM 19 365 19960
Monte Cavallo MC 19 145 20105
San Ginesio MC 19 3498 23603
Montefalcone Appennino FM 19 424 24027
Monte San Martino MC 20 765 24792
Palmiano AP 20 196 24988
Penna San Giovanni MC 20 1108 26096

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Foligno (57155 inhabitants)
51 Km NW of Teramo (54892 inhabitants)
64 Km NE of Terni (111501 inhabitants)
68 Km N of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
90 Km NW of Montesilvano (53738 inhabitants)
97 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 1.4 2019-09-21
02:20:12
42.95 13.23 9 2019-09-21
02:25:52
Sala Sismica INGV-Roma 72600661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-21 02:20:12 ± 0.15
Latitude 42.95 ± 0.01
Longitude 13.23 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72600661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 721
Semi-minor axis of confidence ellipse (meter) 515
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 146
Circular confidence region, given by single value of horizontal uncertainty (meter) 720
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 16
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
Epicentral distance of station farthest from the epicenter (degree) 0.29048
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 72600661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-21 02:25:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.COR1.EHZ. 2019-09-21T02:20:38.75 3.0 undecidable manual S 0.94 0
IV.ARVD.HHZ. 2019-09-21T02:20:34.29 3.0 undecidable manual S 0.27 0
IV.RM33.EHZ. 2019-09-21T02:20:29.54 3.0 undecidable manual S 0.08 0
IV.MNTT.EHZ. 2019-09-21T02:20:23.34 0.3 undecidable manual S 67 0.2905 50 -0.52 65
IV.ASSB.HHZ. 2019-09-21T02:20:21.25 3.0 negative manual P -0.43 0
IV.MF5.EHZ. 2019-09-21T02:20:20.60 0.6 undecidable manual S 78 0.1736 115 0.93 37
IV.SNTG.HHZ. 2019-09-21T02:20:20.18 3.0 undecidable manual Pg -0.38 0
IV.MNTT.EHZ. 2019-09-21T02:20:19.49 0.3 undecidable manual P 67 0.2905 50 0.51 65
IV.NRCA.HHZ. 2019-09-21T02:20:19.16 0.6 undecidable manual S 216 0.1439 119 0.5 45
IV.FDMO.HHZ. 2019-09-21T02:20:18.42 0.6 undecidable manual S 310 0.134 121 0.09 49
IV.CSP1.EHZ. 2019-09-21T02:20:18.60 0.6 undecidable manual S 353 0.1421 119 0 50
IV.GUMA.HHZ. 2019-09-21T02:20:18.65 0.6 undecidable manual S 35 0.1367 120 0.24 48
IV.CESI.HHZ. 2019-09-21T02:20:18.27 3.0 positive manual Pg 0.23 0
IV.NRCA.HHZ. 2019-09-21T02:20:16.22 0.1 negative manual P 216 0.1439 119 0.24 95
IV.MF5.EHZ. 2019-09-21T02:20:16.71 0.6 negative manual P 78 0.1736 115 0.15 48
IV.MMO1.EHZ. 2019-09-21T02:20:16.44 0.6 undecidable manual S 125 0.0881 132 -0.48 46
IV.GUMA.HHZ. 2019-09-21T02:20:15.88 0.3 negative manual P 35 0.1367 120 0.04 74
IV.FDMO.HHZ. 2019-09-21T02:20:15.63 0.3 undecidable manual P 310 0.134 121 -0.16 73
IV.MC2.EHZ. 2019-09-21T02:20:15.59 0.6 undecidable manual S 216 0.0486 149 -0.34 47
IV.CSP1.EHZ. 2019-09-21T02:20:15.64 0.3 negative manual P 353 0.1421 119 -0.3 70
IV.MC2.EHZ. 2019-09-21T02:20:14.32 0.1 positive manual P 216 0.0486 149 -0.09 100
IV.MMO1.EHZ. 2019-09-21T02:20:14.71 0.1 negative manual P 125 0.0881 132 -0.26 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.2 0.000162 1.52 AML other m 2019-09-21T02:20:18.83
IV.CSP1.EHE. ML:1.5 0.000314 0.86 AML other m 2019-09-21T02:20:19.50
IV.FDMO.HHE. ML:1.2 0.000147 0.78 AML other m 2019-09-21T02:20:19.62
IV.NRCA.HHN. ML:1.5 0.000322 0.16 AML other m 2019-09-21T02:20:19.86
IV.NRCA.HHE. ML:1.6 0.000419 0.68 AML other m 2019-09-21T02:20:19.89
IV.CSP1.EHN. ML:1.6 0.000394 0.44 AML other m 2019-09-21T02:20:20.58
IV.GUMA.HHN. ML:1.8 0.000732 0.58 AML other m 2019-09-21T02:20:21.31
IV.GUMA.HHE. ML:1.8 0.0007125 0.36 AML other m 2019-09-21T02:20:22.34
IV.MF5.EHE. ML:1.4 0.000214 1.34 AML other m 2019-09-21T02:20:22.70
IV.CESI.HHE. ML:1.4 0.000133 1.08 AML other m 2019-09-21T02:20:22.83
IV.CESI.HHN. ML:1.6 0.000226 1.48 AML other m 2019-09-21T02:20:23.94
IV.MF5.EHN. ML:1.5 0.000263 1.48 AML other m 2019-09-21T02:20:24.06
IV.ASSB.HHE. ML:1.2 4.54E-5 0.5 AML other m 2019-09-21T02:20:32.30
IV.RM33.EHE. ML:1.2 3.895E-5 0.94 AML other m 2019-09-21T02:20:32.74
IV.ASSB.HHN. ML:1.2 4.935E-5 0.66 AML other m 2019-09-21T02:20:37.58
IV.RM33.EHN. ML:1.2 4.395E-5 0.64 AML other m 2019-09-21T02:20:38.78
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