Earthquake with magnitude of ML 0.2 on date 01-10-2017 and time 04:57:24 (Italy) in region 5 km S Bolognola (MC)

A magnitude ML 0.2 earthquake occured in region: 5 km S Bolognola (MC), on

  • 01-10-2017 02:57:24 (UTC)
  • 01-10-2017 04:57:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.95, 13.226 at 7 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 8 281 867
Montefortino FM 10 1178 2045
Acquacanina MC 10 121 2166
Montemonaco AP 10 604 2770
Fiastra MC 11 559 3329
Amandola FM 11 3629 6958
Visso MC 11 1107 8065
Sarnano MC 12 3264 11329
Fiordimonte MC 15 202 11531
Montegallo AP 15 523 12054
Comunanza AP 15 3166 15220
Gualdo MC 16 815 16035
Preci PG 17 724 16759
Pievebovigliana MC 17 866 17625
Pieve Torina MC 18 1458 19083
Cessapalombo MC 18 512 19595
Monte Cavallo MC 19 145 19740
Smerillo FM 19 365 20105
San Ginesio MC 19 3498 23603
Montefalcone Appennino FM 20 424 24027
Monte San Martino MC 20 765 24792
Palmiano AP 20 196 24988

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 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
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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
Reviewed
Rev100
ML 0.2 2017-10-01
02:57:24
42.9497 13.2258 7 2017-10-01
03:22:46
Sala Sismica INGV-Roma 50595311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-10-01 02:57:24 ± 0.38
Latitude 42.9497 ± 0.0081
Longitude 13.2258 ± 0.0086
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 50595311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 769
Semi-minor axis of confidence ellipse (meter) 685
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 209
Circular confidence region, given by single value of horizontal uncertainty (meter) 770
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 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.17537
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.2

Field Value
Value 0.2
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 50595311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-10-01 03:22:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.COLB.HHZ. 2017-10-01T02:57:52.69 3.0 undecidable manual S 0 0
TV.SF04.EHZ. 2017-10-01T02:57:34.23 3.0 positive manual P 0.13 0
IV.MF5.EHZ. 2017-10-01T02:57:32.43 0.1 undecidable manual S 77 0.1754 110 0.42 91
IV.FDMO.HHZ. 2017-10-01T02:57:30.53 0.1 undecidable manual S 311 0.1331 115 0.02 100
IV.CSP1.EHZ. 2017-10-01T02:57:30.74 0.1 undecidable manual S 354 0.143 114 -0.11 98
IV.MF5.EHZ. 2017-10-01T02:57:29.21 0.1 undecidable manual P 77 0.1754 110 0.23 95
IV.CSP1.EHZ. 2017-10-01T02:57:28.06 0.1 undecidable manual P 354 0.143 114 -0.25 95
IV.MMO1.EHZ. 2017-10-01T02:57:28.54 0.1 undecidable manual S 124 0.089 125 -0.5 91
IV.FDMO.HHZ. 2017-10-01T02:57:28.12 0.1 undecidable manual P 311 0.1331 115 0 100
IV.MC2.EHZ. 2017-10-01T02:57:28.07 0.1 undecidable manual S 215 0.0468 143 0.22 97
IV.MMO1.EHZ. 2017-10-01T02:57:27.04 0.3 negative manual P 124 0.089 125 -0.23 72
IV.MC2.EHZ. 2017-10-01T02:57:26.72 0.1 undecidable manual P 215 0.0468 143 0.14 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.3 1.88E-5 0.7 AML other m 2017-10-01T02:57:30.70
IV.FDMO.HHN. ML:0.2 1.63E-5 0.86 AML other m 2017-10-01T02:57:34.91
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