Earthquake with magnitude of ML 1.8 on date 25-11-2020 and time 23:35:44 (Italy) in region 4 km SE Firmo (CS)

A magnitude ML 1.8 earthquake occured in region: 4 km SE Firmo (CS), on

  • 25-11-2020 22:35:44 (UTC)
  • 25-11-2020 23:35:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.69, 16.2 at 8 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
Firmo CS 4 2115 2115
Altomonte CS 6 4488 6603
Roggiano Gravina CS 9 7208 13811
Lungro CS 9 2592 16403
San Lorenzo del Vallo CS 9 3394 19797
Acquaformosa CS 10 1106 20903
Saracena CS 10 3828 24731
Spezzano Albanese CS 10 7028 31759
Tarsia CS 10 2054 33813
Mottafollone CS 12 1236 35049
San Donato di Ninea CS 13 1360 36409
Terranova da Sibari CS 13 5100 41509
Castrovillari CS 14 22240 63749
San Basile CS 14 1055 64804
San Sosti CS 15 2185 66989
Cassano all'Ionio CS 15 18495 85484
Malvito CS 16 1795 87279
Santa Caterina Albanese CS 16 1222 88501
San Marco Argentano CS 16 7424 95925
Cervicati CS 17 829 96754
Frascineto CS 18 2154 98908
Morano Calabro CS 18 4576 103484
Civita CS 19 902 104386
Fagnano Castello CS 19 3885 108271
Mongrassano CS 19 1607 109878
Santa Sofia d'Epiro CS 20 2628 112506
San Demetrio Corone CS 20 3559 116065
Sant'Agata di Esaro CS 20 1890 117955

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km N of Cosenza (67546 inhabitants)
80 Km N of Lamezia Terme (70714 inhabitants)
94 Km NW of Catanzaro (90612 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 1.8 2020-11-25
22:35:44
39.69 16.2 8 2020-11-25
22:40:32
Sala Sismica INGV-Roma 85018611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-25 22:35:44 ± 0.08
Latitude 39.69 ± 0.00
Longitude 16.20 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85018611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 502
Semi-minor axis of confidence ellipse (meter) 199
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 243
Circular confidence region, given by single value of horizontal uncertainty (meter) 500
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.42178
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 85018611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-25 22:40:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.JOPP.HHZ. 2020-11-25T22:36:07.18 3.0 negative manual P 0.65 0
XK.ALB1.HHZ. 2020-11-25T22:36:01.10 3.0 negative manual P 1.17 0
IV.SERS.HHZ. 2020-11-25T22:36:01.12 3.0 undecidable manual P 0.79 0
MN.CUC.HHZ. 2020-11-25T22:36:01.03 0.6 undecidable manual S 316 0.4218 50 0.81 39
IV.ORI.HHZ. 2020-11-25T22:36:00.86 3.0 undecidable manual S 28 0.411 50 0.96 0
IV.SPS2.HHZ. 2020-11-25T22:36:00.05 0.6 undecidable manual S 164 0.4128 50 0.09 48
IV.BULG.HHZ. 2020-11-25T22:35:59.45 3.0 positive manual P -0.13 0
XK.GIZZ.HHZ. 2020-11-25T22:35:59.09 3.0 positive manual P -0.39 0
MN.TIP.HHZ. 2020-11-25T22:35:58.11 3.0 negative manual P -0.6 0
IV.CELI.HHZ. 2020-11-25T22:35:58.68 0.6 undecidable manual S 140 0.3741 50 -0.13 48
IV.MGR.HHZ. 2020-11-25T22:35:57.80 3.0 positive manual P -0.38 0
IV.SIRI.HHZ. 2020-11-25T22:35:56.40 3.0 negative manual P 0.39 0
IV.PIPA.HHZ. 2020-11-25T22:35:55.25 3.0 negative manual P -0.58 0
IV.SCHR.EHZ. 2020-11-25T22:35:55.23 3.0 undecidable manual P -0.1 0
IV.CET2.HHZ. 2020-11-25T22:35:54.39 0.6 undecidable manual S 229 0.2455 106 -0.05 50
IV.MMN.HHZ. 2020-11-25T22:35:54.64 0.6 undecidable manual S 322 0.2563 106 -0.19 48
IV.SPS2.HHZ. 2020-11-25T22:35:53.12 1.0 positive manual P 164 0.4128 50 -0.34 23
MN.CUC.HHZ. 2020-11-25T22:35:53.03 0.6 undecidable manual P 316 0.4218 50 -0.58 42
IV.ORI.HHZ. 2020-11-25T22:35:53.41 0.1 positive manual P 28 0.411 50 -0.02 97
IV.SALB.HHZ. 2020-11-25T22:35:53.72 0.6 undecidable manual S 31 0.2203 108 0.2 49
IV.CELI.HHZ. 2020-11-25T22:35:52.68 0.6 positive manual P 140 0.3741 50 -0.12 48
IV.MMN.HHZ. 2020-11-25T22:35:50.38 0.1 positive manual P 322 0.2563 106 -0.12 98
IV.CET2.HHZ. 2020-11-25T22:35:50.44 0.1 positive manual P 229 0.2455 106 0.16 97
IV.SALB.HHZ. 2020-11-25T22:35:49.35 1.0 undecidable manual P 31 0.2203 108 -0.39 23
IV.TDS.HHZ. 2020-11-25T22:35:49.76 0.6 undecidable manual S 105 0.1124 123 0.01 51
IV.TDS.HHZ. 2020-11-25T22:35:47.72 0.1 undecidable manual P 105 0.1124 123 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TDS.HHE. ML:1.7 0.000636 1.62 AML other m 2020-11-25T22:35:50.10
IV.TDS.HHN. ML:1.9 0.0010235 1.58 AML other m 2020-11-25T22:35:50.91
IV.CET2.HHE. ML:2.2 0.000823 0.1 AML other m 2020-11-25T22:35:54.53
IV.CET2.HHN. ML:2.4 0.00133 0.16 AML other m 2020-11-25T22:35:55.39
IV.SALB.HHN. ML:1.9 0.0004905 0.64 AML other m 2020-11-25T22:35:55.89
IV.SALB.HHE. ML:2.1 0.0008075 1.22 AML other m 2020-11-25T22:35:55.71
IV.MMN.HHN. ML:2.4 0.001375 1.5 AML other m 2020-11-25T22:35:56.22
IV.MMN.HHE. ML:2.1 0.000649 0.38 AML other m 2020-11-25T22:35:57.20
IV.CELI.HHE. ML:1.4 8.96E-5 1.24 AML other m 2020-11-25T22:35:58.20
IV.CELI.HHN. ML:1.4 7.4E-5 0.16 AML other m 2020-11-25T22:35:59.63
IV.SPS2.HHN. ML:1.3 5.99E-5 0.24 AML other m 2020-11-25T22:36:01.23
MN.CUC.HHE. ML:1.8 0.0002075 0.96 AML other m 2020-11-25T22:36:02.47
IV.ORI.HHE. ML:2.3 0.000675 0.36 AML other m 2020-11-25T22:36:03.75
IV.ORI.HHN. ML:2.1 0.0003885 1.6 AML other m 2020-11-25T22:36:04.93
IV.SPS2.HHE. ML:1.3 6.27E-5 0.2 AML other m 2020-11-25T22:36:05.00
IV.PIPA.HHN. ML:2.1 0.000265 0.4 AML other m 2020-11-25T22:36:05.36
IV.SCHR.EHE. ML:1.5 6.575E-5 1.58 AML other m 2020-11-25T22:36:06.98
IV.PIPA.HHE. ML:2 0.000236 0.96 AML other m 2020-11-25T22:36:07.24
MN.CUC.HHN. ML:1.8 0.0001865 0.98 AML other m 2020-11-25T22:36:08.52
IV.SCHR.EHN. ML:1.4 5.28E-5 0.44 AML other m 2020-11-25T22:36:08.94
IV.SIRI.HHE. ML:1.8 0.000121 0.36 AML other m 2020-11-25T22:36:09.56
IV.SIRI.HNE. ML:1.8 0.000121 0.36 AML other m 2020-11-25T22:36:09.56
IV.MGR.HHE. ML:1.6 6.49E-5 0.94 AML other m 2020-11-25T22:36:11.68
IV.SIRI.HHN. ML:1.9 0.0001545 0.26 AML other m 2020-11-25T22:36:12.44
IV.SIRI.HNN. ML:1.9 0.0001635 0.26 AML other m 2020-11-25T22:36:12.44
IV.MGR.HHN. ML:1.6 6.285E-5 1.06 AML other m 2020-11-25T22:36:12.07
IV.BULG.HHE. ML:1.6 5.735E-5 0.42 AML other m 2020-11-25T22:36:16.31
IV.BULG.HHN. ML:1.8 8.17E-5 1.42 AML other m 2020-11-25T22:36:18.90
MN.TIP.HHN. ML:1.2 2.56E-5 1.02 AML other m 2020-11-25T22:36:23.16
IV.SERS.HHN. ML:1.5 3.82E-5 0.42 AML other m 2020-11-25T22:36:23.49
IV.JOPP.HHE. ML:1.9 5.645E-5 0.56 AML other m 2020-11-25T22:36:23.49
MN.TIP.HHE. ML:1.3 2.805E-5 0.68 AML other m 2020-11-25T22:36:24.02
IV.JOPP.HHN. ML:1.8 4.19E-5 0.72 AML other m 2020-11-25T22:36:25.56
IV.SERS.HHE. ML:1.4 3.14E-5 1.36 AML other m 2020-11-25T22:36:29.10
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