Earthquake with magnitude of ML 1.2 on date 25-01-2020 and time 07:04:21 (Italy) in region 4 km E Bolognola (MC)

A magnitude ML 1.2 earthquake occured in region: 4 km E Bolognola (MC), on

  • 25-01-2020 06:04:21 (UTC)
  • 25-01-2020 07:04:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.98, 13.27 at 26 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
Sarnano MC 7 3264 3406
Amandola FM 7 3629 7035
Montefortino FM 7 1178 8213
Acquacanina MC 9 121 8334
Montemonaco AP 10 604 8938
Fiastra MC 11 559 9497
Gualdo MC 11 815 10312
Ussita MC 11 444 10756
Comunanza AP 12 3166 13922
Castelsantangelo sul Nera MC 14 281 14203
Cessapalombo MC 14 512 14715
San Ginesio MC 15 3498 18213
Smerillo FM 15 365 18578
Monte San Martino MC 15 765 19343
Penna San Giovanni MC 15 1108 20451
Montefalcone Appennino FM 16 424 20875
Visso MC 16 1107 21982
Fiordimonte MC 16 202 22184
Montegallo AP 17 523 22707
Sant'Angelo in Pontano MC 17 1436 24143
Camporotondo di Fiastrone MC 17 563 24706
Pievebovigliana MC 17 866 25572
Caldarola MC 18 1823 27395
Palmiano AP 18 196 27591
Force AP 18 1354 28945
Pieve Torina MC 19 1458 30403
Santa Vittoria in Matenano FM 19 1330 31733
Ripe San Ginesio MC 20 852 32585

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km E of Foligno (57155 inhabitants)
51 Km NW of Teramo (54892 inhabitants)
69 Km NE of Terni (111501 inhabitants)
71 Km N of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
73 Km S of Ancona (100861 inhabitants)
89 Km NW of Montesilvano (53738 inhabitants)
96 Km NW of Pescara (121014 inhabitants)
98 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
Rev 100 ML 1.2 2020-01-25
06:04:21
42.98 13.27 26 2020-01-25
06:09:41
Sala Sismica INGV-Roma 75826491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-25 06:04:21 ± 0.2
Latitude 42.98 ± 0.01
Longitude 13.27 ± 0.01
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75826491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 747
Semi-minor axis of confidence ellipse (meter) 122
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 319
Circular confidence region, given by single value of horizontal uncertainty (meter) 750
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 15
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
Epicentral distance of station farthest from the epicenter (degree) 0.2671
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 75826491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-25 06:09:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-01-25T06:04:35.84 3.0 undecidable manual S -0.41 0
IV.CESI.HHZ. 2020-01-25T06:04:33.29 0.6 undecidable manual S 275 0.2671 126 0.44 45
IV.NRCA.HHZ. 2020-01-25T06:04:31.03 0.3 undecidable manual S 217 0.1871 137 -0.06 73
IV.FDMO.HHZ. 2020-01-25T06:04:30.07 0.6 undecidable manual S 292 0.143 146 -0.2 48
IV.MF5.EHZ. 2020-01-25T06:04:30.43 0.3 undecidable manual S 88 0.1394 146 0.21 72
IV.CSP1.EHZ. 2020-01-25T06:04:29.79 0.1 undecidable manual S 337 0.1178 151 -0.09 99
IV.MMO1.EHZ. 2020-01-25T06:04:29.31 0.1 undecidable manual S 153 0.0944 156 -0.25 96
IV.MC2.EHZ. 2020-01-25T06:04:29.83 0.3 undecidable manual S 219 0.0926 156 0.29 72
IV.CESI.HHZ. 2020-01-25T06:04:28.00 0.1 undecidable manual P 275 0.2671 126 0.14 96
IV.MC2.EHZ. 2020-01-25T06:04:26.06 0.1 positive manual P 219 0.0926 156 0.11 99
IV.NRCA.HHZ. 2020-01-25T06:04:26.78 0.1 undecidable manual P 217 0.1871 137 -0.06 98
IV.CSP1.EHZ. 2020-01-25T06:04:26.09 0.1 undecidable manual P 337 0.1178 151 -0.05 100
IV.FDMO.HHZ. 2020-01-25T06:04:26.25 0.1 undecidable manual P 292 0.143 146 -0.12 98
IV.MF5.EHZ. 2020-01-25T06:04:26.41 0.1 undecidable manual P 88 0.1394 146 0.07 99
IV.MMO1.EHZ. 2020-01-25T06:04:25.80 0.1 undecidable manual P 153 0.0944 156 -0.16 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.2 7.93E-5 0.4 AML other m 2020-01-25T06:04:30.69
IV.FDMO.HHE. ML:1 5.28E-5 0.86 AML other m 2020-01-25T06:04:30.86
IV.NRCA.HHN. ML:1.3 9.33E-5 1.58 AML other m 2020-01-25T06:04:31.94
IV.NRCA.HHE. ML:1.4 0.00010075 0.54 AML other m 2020-01-25T06:04:32.50
IV.CESI.HHN. ML:1.3 7.785E-5 0.28 AML other m 2020-01-25T06:04:33.74
IV.CESI.HHE. ML:1.1 4.81E-5 1.1 AML other m 2020-01-25T06:04:34.63
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