Earthquake with magnitude of ML 1.0 on date 04-01-2020 and time 20:01:06 (UTC) in region Bolognola (MC)

A magnitude ML 1.0 earthquake occured in region: Bolognola (MC), on

  • 04-01-2020 20:01:06 (UTC)
  • 04-01-2020 21:01:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.99, 13.23 at 11 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 1 142 142
Acquacanina MC 6 121 263
Sarnano MC 7 3264 3527
Fiastra MC 8 559 4086
Ussita MC 9 444 4530
Amandola FM 10 3629 8159
Montefortino FM 11 1178 9337
Gualdo MC 12 815 10152
Fiordimonte MC 13 202 10354
Castelsantangelo sul Nera MC 13 281 10635
Montemonaco AP 13 604 11239
Cessapalombo MC 13 512 11751
Visso MC 14 1107 12858
Pievebovigliana MC 14 866 13724
San Ginesio MC 15 3498 17222
Comunanza AP 15 3166 20388
Camporotondo di Fiastrone MC 16 563 20951
Pieve Torina MC 16 1458 22409
Caldarola MC 16 1823 24232
Penna San Giovanni MC 17 1108 25340
Monte San Martino MC 17 765 26105
Smerillo FM 17 365 26470
Sant'Angelo in Pontano MC 18 1436 27906
Muccia MC 18 915 28821
Montefalcone Appennino FM 19 424 29245
Montegallo AP 19 523 29768
Monte Cavallo MC 19 145 29913
Belforte del Chienti MC 19 1886 31799
Ripe San Ginesio MC 20 852 32651

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
68 Km NE of Terni (111501 inhabitants)
70 Km E of Perugia (166134 inhabitants)
73 Km N of L'Aquila (69753 inhabitants)
73 Km SW of Ancona (100861 inhabitants)
92 Km NW of Montesilvano (53738 inhabitants)
96 Km S of Fano (60888 inhabitants)
99 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
Reviewed
Rev100
ML 1.0 2020-01-04
20:01:06
42.99 13.23 11 2020-01-04
20:10:35
Sala Sismica INGV-Roma 75249521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-04 20:01:06 ± 0.1
Latitude 42.99 ± 0.00
Longitude 13.23 ± 0.00
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75249521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 480
Semi-minor axis of confidence ellipse (meter) 43
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 235
Circular confidence region, given by single value of horizontal uncertainty (meter) 480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.08903
Epicentral distance of station farthest from the epicenter (degree) 0.24012
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.4
Num. used stations 7
Type of magnitude ML
Reference to an origin 75249521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-04 20:10:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2020-01-04T20:01:14.03 0.3 undecidable manual S 209 0.1826 91 -0.13 73
IV.FDMO.HHZ. 2020-01-04T20:01:12.18 0.3 undecidable manual S 292 0.1151 106 0.02 76
IV.MC2.EHZ. 2020-01-04T20:01:11.82 0.3 undecidable manual S 201 0.089 122 0.36 70
IV.MMO1.HNZ. 2020-01-04T20:01:11.94 0.3 undecidable manual S 144 0.1169 105 -0.28 72
IV.MML1.HNZ. 2020-01-04T20:01:11.53 0.3 undecidable manual P 302 0.2248 91 -0.03 73
IV.CSP1.EHZ. 2020-01-04T20:01:11.73 0.3 undecidable manual S 348 0.0998 115 -0.02 75
IV.CESI.HHZ. 2020-01-04T20:01:11.81 0.1 undecidable manual P 273 0.2401 91 -0.01 98
IV.NRCA.HHZ. 2020-01-04T20:01:10.70 0.1 undecidable manual P 209 0.1826 91 -0.13 97
IV.MF5.EHZ. 2020-01-04T20:01:10.77 0.1 undecidable manual P 92 0.1655 92 0.23 95
IV.CSP1.EHZ. 2020-01-04T20:01:09.40 0.1 undecidable manual P 348 0.0998 115 -0.04 100
IV.GUMA.HNZ. 2020-01-04T20:01:09.53 0.1 undecidable manual P 47 0.1007 114 0.07 100
IV.MC2.EHZ. 2020-01-04T20:01:09.47 0.1 undecidable manual P 201 0.089 122 0.19 97
IV.MMO1.HNZ. 2020-01-04T20:01:09.50 0.1 undecidable manual P 144 0.1169 105 -0.21 97
IV.FDMO.HHZ. 2020-01-04T20:01:09.63 0.1 undecidable manual P 292 0.1151 106 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.8 5.845E-5 0.12 AML other m 2020-01-04T20:01:12.19
IV.FDMO.HHN. ML:0.9 8.11E-5 0.14 AML other m 2020-01-04T20:01:12.39
IV.NRCA.HHE. ML:1.4 0.000176 0.14 AML other m 2020-01-04T20:01:14.14
IV.CSP1.EHE. ML:0.4 3.1438735E-5 0.0768 AML other m 2020-01-04T20:01:11.79
IV.CSP1.EHN. ML:0.6 3.995135E-5 0.1024 AML other m 2020-01-04T20:01:11.78
IV.NRCA.HHN. ML:1.3 0.00014054765 0.1152 AML other m 2020-01-04T20:01:14.59
IV.NRCA.HNE. ML:1.4 0.0001633174 0.1664 AML other m 2020-01-04T20:01:14.14
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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