Earthquake with magnitude of ML 1.6 on date 01-02-2020 and time 03:11:55 (Italy) in region 4 km E Rezzoaglio (GE)

A magnitude ML 1.6 earthquake occured in region: 4 km E Rezzoaglio (GE), on

  • 01-02-2020 02:11:55 (UTC)
  • 01-02-2020 03:11:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.52, 9.43 at 4 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
Rezzoaglio GE 4 995 995
Santo Stefano d'Aveto GE 4 1126 2121
Fontanigorda GE 10 277 2398
Borzonasca GE 11 2049 4447
Rovegno GE 14 554 5001
Ottone PC 14 516 5517
Montebruno GE 14 240 5757
Gorreto GE 15 97 5854
Ferriere PC 15 1294 7148
Mezzanego GE 16 1537 8685
Favale di Malvaro GE 16 466 9151
Lorsica GE 16 468 9619
Tornolo PR 16 1010 10629
Bedonia PR 16 3482 14111
Fascia GE 16 81 14192
Orero GE 17 565 14757
Rondanina GE 18 62 14819
Compiano PR 19 1112 15931
San Colombano Certenoli GE 19 2683 18614
Cerignale PC 19 127 18741
Coreglia Ligure GE 19 285 19026
Ne GE 20 2259 21285
Cicagna GE 20 2502 23787
Carasco GE 20 3733 27520
Zerba PC 20 77 27597

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Genova (586655 inhabitants)
56 Km NW of La Spezia (93959 inhabitants)
63 Km SW of Piacenza (102191 inhabitants)
72 Km NW of Carrara (63133 inhabitants)
77 Km S of Pavia (72576 inhabitants)
78 Km W of Parma (192836 inhabitants)
78 Km SE of Alessandria (93943 inhabitants)
78 Km NW of Massa (69479 inhabitants)
79 Km E of Savona (61345 inhabitants)
83 Km SW of Cremona (71901 inhabitants)
97 Km W of Reggio nell'Emilia (171345 inhabitants)
98 Km NW of Viareggio (62467 inhabitants)
100 Km SE of Vigevano (63310 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 1.6 2020-02-01
02:11:55
44.52 9.43 4 2020-02-01
02:23:19
Sala Sismica INGV-Roma 76086321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-01 02:11:55 ± 0.14
Latitude 44.52 ± 0.01
Longitude 9.43 ± 0.01
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76086321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 704
Semi-minor axis of confidence ellipse (meter) 664
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 208
Circular confidence region, given by single value of horizontal uncertainty (meter) 700
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
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) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.1322
Epicentral distance of station farthest from the epicenter (degree) 0.63132
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:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 76086321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-01 02:23:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.PCP.HHZ. 2020-02-01T02:12:18.22 0.6 undecidable manual S 272 0.6313 50 -0.4 44
IV.PLMA.HHZ. 2020-02-01T02:12:16.24 0.6 undecidable manual S 147 0.5576 50 -0.18 46
GU.GRAM.HHZ. 2020-02-01T02:12:13.10 0.6 undecidable manual S 93 0.4533 50 -0.22 47
IT.GNV.HGE. 2020-02-01T02:12:09.96 0.6 undecidable manual S 256 0.3669 95 -0.07 49
GU.PCP.HHZ. 2020-02-01T02:12:08.93 1.0 undecidable manual P 272 0.6313 50 -0.06 23
IV.PCN.EHE. 2020-02-01T02:12:08.30 0.3 undecidable manual P 22 0.5567 50 0.6 62
IV.PLMA.HHZ. 2020-02-01T02:12:07.85 0.1 undecidable manual P 147 0.5576 50 0.13 94
IV.SARZ.HHE. 2020-02-01T02:12:07.15 0.6 undecidable manual P 314 0.5063 50 0.3 46
GU.GRAM.HHZ. 2020-02-01T02:12:05.86 0.3 undecidable manual P 93 0.4533 50 -0.07 72
IT.GNV.HGE. 2020-02-01T02:12:04.48 1.0 undecidable manual P 256 0.3669 95 0.45 23
GU.RNCA.HHZ. 2020-02-01T02:12:03.56 0.1 undecidable manual P 262 0.3453 96 -0.01 100
IV.BOB.HHZ. 2020-02-01T02:12:01.04 0.1 undecidable manual P 3 0.2491 98 -0.4 94
GU.GORR.HHZ. 2020-02-01T02:12:00.92 0.6 undecidable manual S 312 0.1322 105 -0.2 50
GU.GORR.HHZ. 2020-02-01T02:11:59.10 0.1 negative manual P 312 0.1322 105 0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GORR.HHN. ML:2.1 0.00135 0.32 AML other m 2020-02-01T02:12:01.32
GU.GORR.HHE. ML:1.8 0.0006735 0.48 AML other m 2020-02-01T02:12:01.50
IV.BOB.HHE. ML:1.9 0.000418 0.46 AML other m 2020-02-01T02:12:04.69
IV.BOB.HHN. ML:1.8 0.0003665 0.82 AML other m 2020-02-01T02:12:04.75
GU.RNCA.HHE. ML:1.5 0.0001285 0.14 AML other m 2020-02-01T02:12:09.56
GU.RNCA.HHN. ML:1.5 0.00012 0.16 AML other m 2020-02-01T02:12:09.57
GU.GRAM.HHE. ML:1.4 6.11E-5 1.1 AML other m 2020-02-01T02:12:14.35
GU.GRAM.HHN. ML:1.4 6.525E-5 0.4 AML other m 2020-02-01T02:12:15.48
IV.PLMA.HHN. ML:1.7 0.0001049 0.78 AML other m 2020-02-01T02:12:18.42
IV.PLMA.HHE. ML:1.8 0.000121 0.32 AML other m 2020-02-01T02:12:20.22
GU.POPM.HHN. ML:1.5 2.735E-5 0.58 AML other m 2020-02-01T02:12:34.55
GU.POPM.HHE. ML:1.7 4.22E-5 1.2 AML other m 2020-02-01T02:12:37.39
GU.PCP.HHE. ML:1.3 3.7131255E-5 0.48 AML other m 2020-02-01T02:12:21.38
GU.PCP.HHN. ML:1.4 4.366573E-5 0.7008 AML other m 2020-02-01T02:12:21.83
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