Earthquake with magnitude of ML 1.2 on date 22-03-2017 and time 22:51:33 (Italy) in region 5 km S Bolognola (MC)

A magnitude ML 1.2 earthquake occured in region: 5 km S Bolognola (MC), on

  • 22-03-2017 21:51:33 (UTC)
  • 22-03-2017 22:51:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.95, 13.22 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.

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
Visso MC 11 1107 4436
Amandola FM 11 3629 8065
Sarnano MC 12 3264 11329
Fiordimonte MC 15 202 11531
Montegallo AP 15 523 12054
Comunanza AP 16 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
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

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
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 2017-03-22
21:51:33
42.95 13.22 6 2017-03-22
22:03:26
Sala Sismica INGV-Roma 42797551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-22 21:51:33 ± 0.12
Latitude 42.95 ± 0.00
Longitude 13.22 ± 0.00
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 42797551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 338
Semi-minor axis of confidence ellipse (meter) 219
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 259
Circular confidence region, given by single value of horizontal uncertainty (meter) 340
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 193
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.42268
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 42797551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-22 22:03:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.CARD.HHZ. 2017-03-22T21:52:54.47 3.0 undecidable manual Sn 2.82 0
MN.TRI.HHZ. 2017-03-22T21:52:48.88 3.0 undecidable manual Sn -4.69 0
HL.VLS.HHZ. 2017-03-22T21:52:37.48 3.0 undecidable manual Pn 4.96 0
IV.PIPA.HHZ. 2017-03-22T21:52:25.66 3.0 undecidable manual Sn 0.92 0
GU.GRAM.HHZ. 2017-03-22T21:52:22.50 3.0 negative manual Pg 8.36 0
IV.APEC.HHZ. 2017-03-22T21:52:19.86 3.0 undecidable manual Sn 2.33 0
IV.RESU.HHZ. 2017-03-22T21:52:14.45 3.0 positive manual Pn 2.77 0
IV.ASSB.HHZ. 2017-03-22T21:52:10.86 0.3 undecidable manual S 0.4227 2.108 0
IV.ASSB.HHZ. 2017-03-22T21:52:09.38 0.1 undecidable manual P 0.4227 2.639 0
IV.COLB.HHZ. 2017-03-22T21:51:41.93 3.0 undecidable manual S -2.46 0
IV.T1219.EHZ. 2017-03-22T21:51:41.37 0.3 undecidable manual S 304 0.1916 106 -0.03 73
IV.T1216.EHZ. 2017-03-22T21:51:40.32 0.6 undecidable manual S 248 0.1601 109 0.06 49
IV.FDMO.HHZ. 2017-03-22T21:51:39.40 0.6 undecidable manual S 311 0.1313 113 0.18 48
IV.T1219.EHZ. 2017-03-22T21:51:38.02 1.0 positive manual P 304 0.1916 106 -0.13 24
IV.T1212.EHZ. 2017-03-22T21:51:38.86 1.0 undecidable manual P 213 0.2374 103 -0.28 23
IV.T1245.HHZ. 2017-03-22T21:51:38.11 0.6 undecidable manual S 195 0.0971 120 0.09 49
IV.T1216.EHZ. 2017-03-22T21:51:37.42 1.0 negative manual P 248 0.1601 109 -0.08 24
IV.T1220.EHZ. 2017-03-22T21:51:37.99 1.0 positive manual P 329 0.188 107 -0.08 24
IV.SRES.HHZ. 2017-03-22T21:51:37.30 3.0 positive manual P -0.98 0
IV.T1245.HHZ. 2017-03-22T21:51:36.36 0.6 negative manual P 195 0.0971 120 0.16 48
IV.MC2.EHZ. 2017-03-22T21:51:36.33 0.6 undecidable manual S 213 0.0459 141 -0.17 49
IV.FDMO.HHZ. 2017-03-22T21:51:36.83 0.6 negative manual P 311 0.1313 113 -0.07 49
IV.T1256.HHZ. 2017-03-22T21:51:36.74 0.6 undecidable manual S 2 0.0567 135 -0.03 50
IV.MC2.EHZ. 2017-03-22T21:51:35.35 0.1 positive manual P 213 0.0459 141 0.03 100
IV.T1256.HHZ. 2017-03-22T21:51:35.60 1.0 positive manual P 2 0.0567 135 0.12 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:1.4 7.83E-5 1.34 AML other m 2017-03-22T21:52:13.12
IV.ASSB.HHE. ML:1.7 0.000134 0.06 AML other m 2017-03-22T21:52:16.47
IV.SRES.HHE. ML:1.4 2.5E-5 0.3 AML other m 2017-03-22T21:51:58.53
IV.SRES.HHN. ML:1.5 3.125E-5 0.54 AML other m 2017-03-22T21:52:07.30
IV.T1220.EHN. ML:1.1 9.385E-5 0.56 AML other m 2017-03-22T21:51:44.78
IV.T1220.EHE. ML:0.7 4.195E-5 0.58 AML other m 2017-03-22T21:51:46.34
IV.T1245.HHN. ML:0.8 9.04E-5 0.28 AML other m 2017-03-22T21:51:38.46
IV.T1245.HHE. ML:0.6 6.535E-5 0.4 AML other m 2017-03-22T21:51:38.40
IV.T1256.HHE. ML:0 4.78E-5 1.36 AML other m 2017-03-22T21:51:38.73
IV.T1256.HHN. ML:0 5.06E-5 0.94 AML other m 2017-03-22T21:51:38.72
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