Earthquake with magnitude of ML 1.1 on date 01-07-2020 and time 18:41:34 (Italy) in region 4 km SW Bolognola (MC)

A magnitude ML 1.1 earthquake occured in region: 4 km SW Bolognola (MC), on

  • 01-07-2020 16:41:34 (UTC)
  • 01-07-2020 18:41:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.98, 13.19 at 13 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 4 142 142
Ussita MC 5 444 586
Acquacanina MC 6 121 707
Fiastra MC 7 559 1266
Castelsantangelo sul Nera MC 10 281 1547
Visso MC 10 1107 2654
Fiordimonte MC 10 202 2856
Sarnano MC 11 3264 6120
Pievebovigliana MC 13 866 6986
Montefortino FM 13 1178 8164
Pieve Torina MC 14 1458 9622
Amandola FM 14 3629 13251
Montemonaco AP 14 604 13855
Monte Cavallo MC 15 145 14000
Cessapalombo MC 16 512 14512
Gualdo MC 16 815 15327
Preci PG 16 724 16051
Muccia MC 17 915 16966
San Ginesio MC 18 3498 20464
Caldarola MC 18 1823 22287
Camporotondo di Fiastrone MC 18 563 22850
Comunanza AP 19 3166 26016
Montegallo AP 19 523 26539

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
55 Km NW of Teramo (54892 inhabitants)
64 Km NE of Terni (111501 inhabitants)
67 Km E of Perugia (166134 inhabitants)
72 Km N of L'Aquila (69753 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
94 Km NW of Montesilvano (53738 inhabitants)
97 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
Reviewed
Rev100
ML 1.1 2020-07-01
16:41:34
42.98 13.19 13 2020-07-01
17:00:49
Sala Sismica INGV-Roma 80681361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-01 16:41:34 ± 0.07
Latitude 42.98 ± 0.00
Longitude 13.19 ± 0.00
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80681361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 325
Semi-minor axis of confidence ellipse (meter) 191
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 57
Circular confidence region, given by single value of horizontal uncertainty (meter) 320
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.35793
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 80681361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-01 17:00:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CMDO.HHZ. 2020-07-01T16:43:08.30 3.0 undecidable manual Pg 16.780001 0
CR.STON.BHZ. 2020-07-01T16:43:00.98 3.0 undecidable manual Sn -0.11 0
AC.VLO.HHZ. 2020-07-01T16:42:55.23 3.0 positive manual Pn 5.72 0
ST.RONC.HNZ. 2020-07-01T16:42:53.95 3.0 undecidable manual Sn -2.19 0
IV.CET2.HHZ. 2020-07-01T16:42:48.67 3.0 undecidable manual Pg 17.190001 0
IV.CRTO.HHZ. 2020-07-01T16:42:38.05 3.0 undecidable manual Sn -0.72 0
IV.VENL.HNZ. 2020-07-01T16:42:33.59 3.0 undecidable manual Sg 1.46 0
IV.ZCCA.HHZ. 2020-07-01T16:42:22.83 3.0 undecidable manual Sn 1.15 0
CR.STON.BHZ. 2020-07-01T16:42:17.92 3.0 undecidable manual Pn -2.85 0
IV.IOCA.HHZ. 2020-07-01T16:42:17.61 3.0 positive manual Pg 10.29 0
IV.SALO.HHZ. 2020-07-01T16:42:15.19 3.0 undecidable manual Pn 0.81 0
OT.OT11.EHZ. 2020-07-01T16:42:14.38 3.0 positive manual Pg 8.46 0
IV.LRP.EHZ. 2020-07-01T16:42:11.23 3.0 undecidable manual Sn -3.22 0
IV.LAV9.HNZ. 2020-07-01T16:42:11.08 3.0 undecidable manual Sn -1.27 0
IV.RIBO.EHZ.01 2020-07-01T16:41:58.05 3.0 positive manual Pg 5.59 0
IV.VIVA.HHZ. 2020-07-01T16:41:53.48 3.0 negative manual Pn 1.16 0
IV.TERO.HHZ. 2020-07-01T16:41:44.02 3.0 undecidable manual Pg 1.21 0
IV.CESI.HNZ. 2020-07-01T16:41:43.39 0.3 undecidable manual S 278 0.2095 100 0.2 71
IV.EL6.EHZ. 2020-07-01T16:41:42.12 0.1 undecidable manual P 350 0.3579 94 0.08 95
IV.PF6.EHZ. 2020-07-01T16:41:41.55 0.3 undecidable manual S 2 0.161 108 -0.25 70
IV.NRCA.HHZ. 2020-07-01T16:41:41.34 0.3 undecidable manual S 201 0.1538 109 -0.25 72
IT.MTCL.HGZ. 2020-07-01T16:41:41.17 0.3 undecidable manual S 277 0.1394 113 -0.03 74
IV.MMO1.EHZ. 2020-07-01T16:41:40.80 0.3 undecidable manual S 127 0.1277 117 -0.09 74
IV.CSP1.EHZ. 2020-07-01T16:41:40.58 0.3 undecidable manual S 6 0.1151 121 0.01 74
IV.CESI.HNZ. 2020-07-01T16:41:39.54 0.1 undecidable manual P 278 0.2095 100 0.02 98
IV.MC2.EHZ. 2020-07-01T16:41:39.75 0.3 undecidable manual S 180 0.0657 142 0.28 72
IV.FDMO.HHZ. 2020-07-01T16:41:39.89 0.3 undecidable manual S 309 0.0944 129 -0.18 72
IV.CSP1.EHZ. 2020-07-01T16:41:38.07 0.1 undecidable manual P 6 0.1151 121 0.07 100
IV.MMO1.EHZ. 2020-07-01T16:41:38.16 0.1 undecidable manual P 127 0.1277 117 -0.03 100
IV.PF6.EHZ. 2020-07-01T16:41:38.62 0.1 undecidable manual P 2 0.161 108 -0.09 97
IV.NRCA.HHZ. 2020-07-01T16:41:38.48 0.1 undecidable manual P 201 0.1538 109 -0.11 98
IT.MTCL.HGZ. 2020-07-01T16:41:38.33 0.1 undecidable manual P 277 0.1394 113 -0.04 99
IV.GUMA.HNE. 2020-07-01T16:41:38.59 0.1 undecidable manual P 51 0.1376 114 0.25 96
IV.MC2.EHZ. 2020-07-01T16:41:37.57 0.1 undecidable manual P 180 0.0657 142 0.2 97
IV.FDMO.HHZ. 2020-07-01T16:41:37.69 0.1 undecidable manual P 309 0.0944 129 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.9 7.3839995E-5 0.1024 AML other m 2020-07-01T16:41:40.10
IV.FDMO.HHE. ML:1 0.0001060636 0.1408 AML other m 2020-07-01T16:41:39.93
IV.CSP1.EHE. ML:1.2 0.00014245611 0.0768 AML other m 2020-07-01T16:41:40.71
IV.CSP1.EHN. ML:0.9 7.0296945E-5 0.064 AML other m 2020-07-01T16:41:40.73
IV.NRCA.HHN. ML:1.2 0.000120803345 0.0896 AML other m 2020-07-01T16:41:41.66
IV.NRCA.HNE. ML:1.2 0.000131979655 0.1024 AML other m 2020-07-01T16:41:41.46
IV.NRCA.HHE. ML:1.3 0.000144323 0.0896 AML other m 2020-07-01T16:41:41.45
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download