RIOT AFTERMATH : Pockets of Violence, but No Rampage : Civil unrest: Incidents of violence were sporadic. Some communities dealt with demonstrations, isolated attacks on property and deaths possibly related to the rioting. Other cities remained calm.

Last week’s not guilty verdicts in the trial of four police officers accused of assaulting Rodney G. King sparked incidents unevenly across the San Gabriel Valley.

Some police departments reported no unusual activity. Several experienced isolated assaults and attacks on property. Some handled large demonstrations and unruly crowds. Here is a chronology.

Wednesday

8:06 p.m., Monrovia: An incendiary device is thrown from a passing car at Central and Alta Vista avenues, but the device fails to ignite.

8:10 p.m., Monrovia: A police officer’s wife is injured when objects are thrown at her car, shattering her windshield.

9 p.m., South Pasadena: A black man throws a table through the plate-glass window of Buster’s Ice Cream and Coffee Shop and screams “The party’s over!” The man steps over several cowering customers and takes the cash register.

9 p.m., Pasadena: About 17 youths, some wielding baseball bats and others carrying stones, smash windows at the Market City Cafe on Fair Oaks Avenue. Neighboring businesses also are hit.

10 p.m., Claremont: Three hundred students begin a march at Indian Hill Boulevard and Arrow Highway. Dispersed at 11:30 p.m. around Claremont Colleges campus.

10:15 p.m., Monrovia: A 53-year-old man at Santa Teresita Hospital in Duarte reports being assaulted by a carload of black males who jumped out and struck him in the head with a 3-foot stick, cutting off part of an ear.

10:15 p.m., Monrovia: A trash fire is reported at the Circle K market on Colorado Boulevard.

11:36 p.m., Monrovia: A firebomb is thrown into a house on Colorado Boulevard, but the device fails to ignite.

Thursday

2 a.m., Sierra Madre: Someone throws a Molotov cocktail at a patrol car parked behind the police station on Sierra Madre Boulevard. The makeshift device fails to ignite.

2 a.m., Rosemead: Five people are stopped for a traffic violation at Valley and Mission boulevards. Clothing and food apparently looted from Los Angeles are found in the car. All are arrested.

8 a.m., Pasadena: Students at John Muir High School rally.

10 a.m., Pasadena: School officials at John Muir allow students to march to City Hall two miles away.

10:30 a.m., Pasadena: Thirty to 40 youths ransack the Van’s Tennis Shoes outlet on Colorado Boulevard.

1 p.m., Pasadena: Plaza Pasadena closes after scores of youths, many from John Muir, begin to gather. The shopping center remains closed through Friday after receiving telephone threats.

4 p.m., Claremont: About 250 students rally and block several intersections, but they are persuaded to move. About 40 officers are called out, but no arrests are made.

5:35 p.m., Pasadena: Three men are arrested behind a Circuit City store at Rosemead and Colorado boulevards after allegedly trying to break in through the back entrance.

6 p.m., Irwindale: A minor arson is reported in an industrial complex.

6:28 p.m., Monrovia: A man and woman are found unloading looted items from a car in the 800 block of West Duarte Road. The items, including cases of liquor, beauty supplies and appliances, some in slightly burned packages, are recovered by the police but the couple are not arrested.

7:15 p.m., Pomona: Disturbances reported on Holt Avenue and Indian Hill Avenue.

7:30 p.m., El Monte: Six people in a truck smash the windows of McMahon Furniture store in the Valley Mall at Valley Boulevard and Santa Anita Avenue. They load furniture on the back of a truck and flee. The truck is pursued by police and rear-ends another car. Four people are arrested.

7:30 p.m., El Monte: Police go on full alert and an emergency operations center is opened in police headquarters. About 75 officers are called to duty, bringing the total city force to 118 officers.

9:05 p.m., El Monte: Molotov cocktail thrown into Flo’s Restaurant on Peck Road. Damage is minor.

9:24 p.m., Monrovia: Two men are arrested after they are seen leaving a business on East Huntington Drive with a lamp and a VCR. Liquor cases are inside their car. Both admit to looting.

9:30 p.m., Pomona: Three hundred people gather at the Indian Hill Mall, most drawn by flyers apparently circulated by would-be looters. Businesses had closed early and the parking lot was blocked off, so the crowd begins vandalizing nearby stores and starting fires in trash dumpsters.

9:50 p.m., El Monte: The City Council calls an emergency meeting and imposes a dusk-to-dawn curfew. The curfew remains in effect for three days.

9:57 p.m., Monrovia: A trash fire is reported in a dumpster in the 2600 block of South California Avenue.

10:10 p.m., El Monte: Four people try to break into Sounds R Us on Lower Azusa Avenue. They are met by the owner, who fires a shotgun at them. Two are caught.

Friday

Plaza Pasadena remains closed after shutting down Thursday afternoon. Many businesses retain curtailed hours, some in coordination with various curfews throughout Los Angeles County.

1 a.m., Pomona: Meeker Gibson, 35, is killed by a shotgun blast at a telephone stand at a gas station at Holt and Loranne avenues. Police say the shooting occurred hours after disturbances a few blocks away had ended, and they have no motive for the shooting. The coroner’s office has listed it as riot-related.

1 p.m., Valinda: A man is arrested with stolen items that were apparently looted from Los Angeles.

1:55 p.m., Altadena: A group of black teen-agers chases the 14-year-old son of Lucie Marionian and a friend to Marionian’s home on East New York Street. The boys hide in the back yard. Later, Marionian, 51, is found stabbed to death. Los Angeles County sheriff’s homicide detectives have arrested four in connection with the death. Authorities question whether there is a link to the King verdict.

4 p.m., La Puente: Six youths enter a local market, pull socks off shelves, soak them in lighter fluid and light them. The youths grab cigarettes and run out the door. The store manager puts out the flaming socks.

Saturday

3:30 a.m., near Pasadena: A Molotov cocktail is thrown at an attorney’s office on San Gabriel Boulevard. Minor damage reported.

11:35 p.m., Pasadena: After a shootout between residents and Pasadena police called to break up a party, police find the body of Howard Eugene Martin, 22, in a nearby apartment. Pasadena police said Wednesday afternoon that it has been determined that a police bullet killed Martin. Police say the shootout is not related to the King verdict, though residents say it was aggravated by a mood of rebellion.

Monday

2:12 a.m., Baldwin Park: The body of laborer Hugo Martinez, 23, is found on a sidewalk. He had been shot in the head. City officials and sheriff’s homicide investigators have questioned whether there’s a connection to the King verdict.

5 p.m., El Monte: City officials impose bans on the sale of ammunition and gasoline in hand-carried containers.