Earthquake with magnitude of Md 2.2 on date 19-11-1988 and time 23:18:03 (Italy) in region 2 km E San Gemini (TR)

A magnitude Md 2.2 earthquake occured in region: 2 km E San Gemini (TR), on

  • 19-11-1988 22:18:03 (UTC)
  • 19-11-1988 23:18:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6220, 12.5730 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
San Gemini TR 2 5018 5018
Montecastrilli TR 8 5022 10040
Acquasparta TR 8 4778 14818
Terni TR 9 111501 126319
Narni TR 12 19785 146104
Avigliano Umbro TR 12 2558 148662
Amelia TR 15 11897 160559
Stroncone TR 16 4917 165476
Montefranco TR 16 1276 166752
Arrone TR 17 2763 169515
Massa Martana PG 18 3770 173285
Ferentillo TR 18 1913 175198
Spoleto PG 19 38218 213416

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km NW of Terni (111501 inhabitants)
39 Km S of Foligno (57155 inhabitants)
45 Km NE of Viterbo (67173 inhabitants)
56 Km S of Perugia (166134 inhabitants)
70 Km N of Guidonia Montecelio (88673 inhabitants)
74 Km W of L'Aquila (69753 inhabitants)
75 Km N of Tivoli (56533 inhabitants)
81 Km N of Roma (2864731 inhabitants)
87 Km NE of Civitavecchia (52991 inhabitants)
93 Km W of Teramo (54892 inhabitants)
98 Km N of Fiumicino (78395 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 2.2
ML-VAX 1.6
1988-11-19
22:18:03
42.622 12.573 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 81519
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-11-19 22:18:03 ± 0.256
Latitude 42.6220 ± 0.0072
Longitude 12.5730 ± 0.0419
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 81519

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 3520.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 206
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.00818
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 81519
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:16:41

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 81519
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1988-11-19T22:18:35.21 10.0 undecidable manual SG 17 0.9102 -0.12 0.5
--.AZI.Z. 1988-11-19T22:18:34.50 10.0 undecidable manual SG 134 0.8991 -0.28 0.3
--.AZI.Z. 1988-11-19T22:18:22.00 10.0 undecidable manual PG 134 0.8991 0.23 1
--.ASS.Z. 1988-11-19T22:18:21.10 10.0 undecidable manual SG 7 0.444 0.88 0
--.ARV.Z. 1988-11-19T22:18:21.89 10.0 undecidable manual PG 17 0.9102 -0.19 1.1
--.MNS.Z. 1988-11-19T22:18:14.00 10.0 undecidable manual SG 161 0.2442 0.07 0.7
--.ASS.Z. 1988-11-19T22:18:13.20 10.0 undecidable manual PG 7 0.444 -0.28 1
--.MNS.Z. 1988-11-19T22:18:09.70 10.0 positive manual PG 161 0.2442 -0.02 3.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download